Individual provider Active NPI

John Joseph Flaherty Jr., M.D., MPH

  • Emergency Medicine Physician
  • La Crosse, WI
National Provider Identifier
1528143807
Registry record updated Apr 3, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
86972 Issued in WI
Practice address
1836 South Ave
La Crosse, WI 54601-5429
Phone
(608) 782-7300
NPI assigned
Oct 26, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 3, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
General Practice Physician 208D00000X MD2022-1413 NM
Emergency Medicine Physician 207P00000X 86972 WI Primary
Emergency Medicine Physician 207P00000X 036064476 IL
Emergency Medicine Physician 207P00000X 81701 MN

Addresses

Primary practice location

1836 South Ave
La Crosse, WI 54601-5429

Mailing address

1836 South Ave
La Crosse, WI 54601-5429
Phone (608) 782-7300

Other practice location 1

6565 Americas Pkwy NE Ste 200
Albuquerque, NM 87110-8172
Phone (866) 273-2451

Other practice location 2

115 E College Blvd
Roswell, NM 88201-5158
Phone (866) 273-2451

Other practice location 3

1408 8th St
Alamogordo, NM 88310-5115
Phone (866) 273-2451

Other practice location 4

100 Gossett Dr Ste B
Aztec, NM 87410-4529
Phone (866) 273-2451

Other practice location 5

201 N 4th St
Artesia, NM 88210-2168
Phone (866) 273-2451

Other practice location 6

301 N Canyon St
Carlsbad, NM 88220-5809
Phone (866) 273-2451

Other practice location 7

950 W Aztec Ave
Gallup, NM 87301-6666
Phone (866) 273-2451

Other practice location 8

1012 Marquez Pl Unit 106B
Santa Fe, NM 87505-1833
Phone (866) 273-2451

Other practice location 9

201 E Las Cruces Ave Ste. 1501
Las Cruces, NM 88001
Phone (866) 273-2451

Other practice location 10

221 N Kansas St Ste 700
El Paso, TX 79901-1444
Phone (866) 273-2451

Other practice location 11

2705 S Alma School Rd Ste 2
Chandler, AZ 85286-4400
Phone (866) 273-2451

Other practice location 12

2301 E 20th St
Farmington, NM 87401-8905
Phone (866) 273-2451

Other practice location 13

500 N Hudson St
Silver City, NM 88061-5435
Phone (866) 273-2451

Other practice location 14

1224 W 21st St
Clovis, NM 88101-4199
Phone (866) 273-2451

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL, NM, MN, WI4 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 4

Enrollment IDStateProvider typePAC IDDetails
I20050825000336 IL Practitioner - Emergency Medicine 7315978780 Reassigns benefits to 2 organizations
I20221227000800 NM Practitioner - Emergency MedicinePractitioner - Internal MedicinePractitioner - Pediatric Medicine 7315978780 Reassigns benefits to 5 organizations
I20260413000512 MN Practitioner - Emergency Medicine 7315978780 Reassigns benefits to 2 organizations
I20260413000653 WI Practitioner - Emergency Medicine 7315978780 Reassigns benefits to 5 organizations

Care Compare profile

Medicare Care Compare
Specialty
Emergency MedicineAlso: Internal Medicine, Pediatric Medicine
Education
Other, 1981
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Fedko Emergency Physicians New Mexico, LLCGroup PAC ID 4880934389, 53 clinicians
Gundersen Lutheran Medical Center IncGroup PAC ID 2163331414, shared by 16 NPIs, 888 clinicians

Practice addresses (Care Compare)

1016 E Rooselvelt Ave
Grants, NM 87020-2118
Phone (505) 287-4446

1122 W Hwy 61
Winona, MN 55987-1957
Phone (507) 615-0600

1836 S Ave
La Crosse, WI 54601-5429
Phone (608) 783-7300

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
036064476ILMDEmergency Medicine Physician
81701MNMDEmergency Medicine Physician
86972WIMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Emergency Services Midwest SC Emergency Medicine CurrentSince Jun 1, 2020 Accepting new patients
Curry Emergency Group LLC Emergency Medicine CurrentSince Jun 11, 2023 Accepting new patients
Endeavor Health Medical Group CurrentSince Jan 1, 2000 Accepting new patients
Endeavor Health Medical Group Emergency Medicine CurrentSince Jan 1, 2000 Accepting new patients
Roosevelt County Special Hospital District Current Accepting new patients
Southwest Emergency Medical Associates of NM PC Emergency Medicine CurrentSince Jul 1, 2025 Accepting new patients
Hospitalist Medicine Physicians of New Mexico - Clovis, LLC Emergency Medicine CurrentSince Feb 1, 2023 Accepting new patients
Cibola General Hospital Corporation CurrentSince Oct 1, 2023 Accepting new patients
Fedko Emergency Physicians New Mexico LLC Emergency Medicine CurrentSince Oct 1, 2023 Accepting new patients
Behavior Change Institute, LLC. General Practice PastSince Feb 1, 2024 Accepting new patients
Michael a Rowley MD PA Past Accepting new patients
Gibson Community Hospital Association Past Accepting new patients
Hoopeston Emergency Medicine Specialists, LTD. Emergency Medicine Past Accepting new patients

Locations

9532 Eagle Way
Chicago, IL 60678

49 S Waukegan Rd
Ste 200
Deerfield, IL 60015
Phone (847) 945-4575

2650 Ridge Ave
Ste 2218A
Evanston, IL 60201
Phone (847) 503-4222

2650 Ridge Ave
Evanston, IL 60201
Phone (847) 570-1206

2650 Ridge Ave
Rm G909
Evanston, IL 60201
Phone (847) 570-2114

4500 Memorial Dr
Swansea, IL 62226
Phone (618) 233-7750

900 W Ash St
Deming, NM 88030
Phone (505) 546-2761

1423 E Roosevelt Ave
Grants, NM 87020
Phone (505) 287-6500

1016 E Roosevelt Ave
Grants, NM 87020
Phone (505) 287-4446

4900 N Lovington Hwy
Hobbs, NM 88240
Phone (575) 492-5000

2450 S Telshor Blvd
Las Cruces, NM 88011
Phone (505) 522-8641

42121 US Highway 70
Portales, NM 88130
Phone (505) 226-3627

4801 Beckner Rd
Santa Fe, NM 87507
Phone (505) 772-1234

4801 Beckner Rd
#F
Santa Fe, NM 87507
Phone (505) 772-1234

301 E Miel de Luna Ave
Tucumcari, NM 88401
Phone (575) 461-7000

Interoperability endpoints

  • Direct secure messaging: jflahert@yourcarecommunity.org
  • Direct secure messaging: johnflaherty@rghnm.medalliesdirect.net

Organizations & group practices 20

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

View all 20

Hospital & facility affiliations 9

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1161820800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775174400000",
    "number": "1528143807",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1836 SOUTH AVE",
            "city": "LA CROSSE",
            "state": "WI",
            "postal_code": "546015429",
            "telephone_number": "608-782-7300"
        },
        {
            "country_code": "US",
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            "address_purpose": "LOCATION",
            "address_type": "DOM",
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            "postal_code": "546015429",
            "telephone_number": "608-782-7300"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "6565 Americas Pkwy NE Ste 200",
            "address_purpose": "LOCATION",
            "city": "Albuquerque",
            "state": "NM",
            "postal_code": "871108172",
            "country_code": "US",
            "telephone_number": "866-273-2451",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "115 E College Blvd",
            "address_purpose": "LOCATION",
            "city": "Roswell",
            "state": "NM",
            "postal_code": "882015158",
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            "telephone_number": "866-273-2451",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1408 8th St",
            "address_purpose": "LOCATION",
            "city": "Alamogordo",
            "state": "NM",
            "postal_code": "883105115",
            "country_code": "US",
            "telephone_number": "866-273-2451",
            "fax_number": "866-608-5560",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "100 Gossett Dr Ste B",
            "address_purpose": "LOCATION",
            "city": "Aztec",
            "state": "NM",
            "postal_code": "874104529",
            "country_code": "US",
            "telephone_number": "866-273-2451",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "201 N 4th St",
            "address_purpose": "LOCATION",
            "city": "Artesia",
            "state": "NM",
            "postal_code": "882102168",
            "country_code": "US",
            "telephone_number": "866-273-2451",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "301 N Canyon St",
            "address_purpose": "LOCATION",
            "city": "Carlsbad",
            "state": "NM",
            "postal_code": "882205809",
            "country_code": "US",
            "telephone_number": "866-273-2451",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "950 W Aztec Ave",
            "address_purpose": "LOCATION",
            "city": "Gallup",
            "state": "NM",
            "postal_code": "873016666",
            "country_code": "US",
            "telephone_number": "866-273-2451",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1012 Marquez Pl Unit 106B",
            "address_purpose": "LOCATION",
            "city": "Santa Fe",
            "state": "NM",
            "postal_code": "875051833",
            "country_code": "US",
            "telephone_number": "866-273-2451",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "201 E Las Cruces Ave Ste. 1501",
            "address_purpose": "LOCATION",
            "city": "Las Cruces",
            "state": "NM",
            "postal_code": "88001",
            "country_code": "US",
            "telephone_number": "866-273-2451",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "221 N Kansas St Ste 700",
            "address_purpose": "LOCATION",
            "city": "El Paso",
            "state": "TX",
            "postal_code": "799011444",
            "country_code": "US",
            "telephone_number": "866-273-2451",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2705 S Alma School Rd Ste 2",
            "address_purpose": "LOCATION",
            "city": "Chandler",
            "state": "AZ",
            "postal_code": "852864400",
            "country_code": "US",
            "telephone_number": "866-273-2451",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2301 E 20th St",
            "address_purpose": "LOCATION",
            "city": "Farmington",
            "state": "NM",
            "postal_code": "874018905",
            "country_code": "US",
            "telephone_number": "866-273-2451",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "500 N Hudson St",
            "address_purpose": "LOCATION",
            "city": "Silver City",
            "state": "NM",
            "postal_code": "880615435",
            "country_code": "US",
            "telephone_number": "866-273-2451",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1224 W 21st St",
            "address_purpose": "LOCATION",
            "city": "Clovis",
            "state": "NM",
            "postal_code": "881014199",
            "country_code": "US",
            "telephone_number": "866-273-2451",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "FLAHERTY",
        "first_name": "JOHN",
        "middle_name": "JOSEPH",
        "name_prefix": "Dr.",
        "name_suffix": "Jr.",
        "credential": "M.D., MPH",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-10-26",
        "last_updated": "2026-04-03",
        "certification_date": "2026-04-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208D00000X",
            "taxonomy_group": "",
            "desc": "General Practice",
            "state": "NM",
            "license": "MD2022-1413",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "WI",
            "license": "86972",
            "primary": true
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "IL",
            "license": "036064476",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "MN",
            "license": "81701",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in La Crosse, WI

Sources for this page

Verify at the official NPI Registry.