Individual provider Active NPI

Jacob Stephen Feldman, M.D.

  • Otolaryngology Physician
  • Flagstaff, AZ
National Provider Identifier
1104137710
Registry record updated Dec 4, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Otolaryngology PhysicianTaxonomy code 207Y00000X
License
64925 Issued in AZ
Practice address
1200 N Beaver St
Flagstaff, AZ 86001-3118
Phone
(928) 779-3366
NPI assigned
Jun 29, 2010
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 4, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Otolaryngology Physician 207Y00000X 57661-20 WI
Otolaryngology Physician 207Y00000X 64925 AZ Primary

Addresses

Primary practice location

1200 N Beaver St
Flagstaff, AZ 86001-3118

Mailing address

1200 N Beaver St
Flagstaff, AZ 86001-3118
Phone (928) 779-3366

Other practice location 1

1000 N Oak Ave
Marshfield, WI 54449-5703
Phone (715) 387-5511

Other practice location 2

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

Other practice location 3

5100 W Taft Rd Ste 3E
Liverpool, NY 13088-3809
Phone (315) 452-2350

Other identifiers 1

IdentifierTypeStateIssuer
137469MedicaidAZ

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WI, AZ2 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 2

Enrollment IDStateProvider typePAC IDDetails
I20161202002020 WI Practitioner - Otolaryngology 5799918876 Reassigns benefits to 10 organizations
I20240105003087 AZ Practitioner - Otolaryngology 5799918876 Reassigns benefits to 1 organization
Practice locations: Flagstaff, AZ

Care Compare profile

Medicare Care Compare
Specialty
Otolaryngology
Education
University of Arizona College of Medicine, 2010
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
MCHS Hospitals IncGroup PAC ID 5698071173, shared by 28 NPIs, 1,195 clinicians
Northern Arizona Healthcare CorporationGroup PAC ID 3577473362, 391 clinicians

Practice addresses (Care Compare)

1000 N Oak Ave
Marshfield, WI 54449-5703
Phone (715) 387-5511

1200 N Beaver St
Flagstaff, AZ 86001-3118
Phone (928) 779-3366

1215 N Beaver St
Suite 203
Flagstaff, AZ 86001-3126
Phone (928) 773-2249

2000 S Thompson St
Flagstaff, AZ 86001-8759
Phone (928) 226-6400

269 S Candy LN
Cottonwood, AZ 86326-4158
Phone (928) 639-6000

340 S Willard St
Cottonwood, AZ 86326-4126
Phone (928) 639-6025

7810 N US Hwy 89
Flagstaff, AZ 86004-6255
Phone (928) 522-8375

Hospital & facility affiliations

  • Verde Valley Medical Center Hospital, Cottonwood, AZ, CCN 030007
  • Flagstaff Medical Center Hospital, Flagstaff, AZ, CCN 030023
  • Marshfield Medical Center Hospital, Marshfield, WI, CCN 520037

Procedures performed for Medicare patients

ProcedureNumber of procedures
Melanoma (skin cancer) excision1-10

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
64925AZMDOtolaryngology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
MCHS Hospitals Inc Current Accepting new patients
MCHS Hospitals Inc CurrentSince Jan 5, 2024 Accepting new patients
Lakeview Medical Center Inc of Rice Lake CurrentSince Jan 5, 2024 Accepting new patients
Beaver Dam Community Hospitals Inc CurrentSince Jan 5, 2024 Accepting new patients
Gundersen Lutheran Medical Center, Inc CurrentSince Feb 16, 2022 Accepting new patients
Northern Arizona Healthcare Corporation CurrentSince Sep 15, 2024 Accepting new patients
Northern Arizona Healthcare Corporation Family Medicine CurrentSince Sep 15, 2024 Accepting new patients
Memorial Hospital Inc CurrentSince Jan 5, 2024 Accepting new patients
Gundersen Lutheran Medical Center, Inc CurrentSince Feb 16, 2022 Accepting new patients
Flambeau Hospital Inc CurrentSince Jan 5, 2024 Accepting new patients
MCHS Hospitals Inc Current Accepting new patients
Beaver Dam Community Hospitals Inc CurrentSince Jan 5, 2024 Accepting new patients
Feldman ENT&Facial Plastic Surgery CurrentSince Aug 11, 2023 Accepting new patients
Memorial Hospital Inc CurrentSince Jan 5, 2024 Accepting new patients
Gundersen Lutheran Medical Center Inc Current Accepting new patients
MCHS Hospitals Inc CurrentSince Jan 5, 2024 Accepting new patients
Lakeview Medical Center Inc of Rice Lake CurrentSince Jan 5, 2024 Accepting new patients
Flambeau Hospital Inc Current Accepting new patients

Locations

340 S Willard St
Ste 201
Cottonwood, AZ 86326
Phone (928) 634-5551

340 S Willard St
Cottonwood, AZ 86326
Phone (928) 634-5551

269 S Candy Ln
Cottonwood, AZ 86326
Phone (928) 634-2251

1215 N Beaver St
Ste 203
Flagstaff, AZ 86001
Phone (928) 773-2249

1200 N Beaver St
Flagstaff, AZ 86001
Phone (928) 213-6235

705 S University Ave
Beaver Dam, WI 53916
Phone (920) 885-6090

2116 Craig Rd
Eau Claire, WI 54701
Phone (715) 858-4500

3501 Golf Rd
Eau Claire, WI 54701
Phone (715) 858-4200

1000 Starr Ave
Eau Claire, WI 54703
Phone (715) 858-4850

1836 South Ave
La Crosse, WI 54601
Phone (608) 788-8102

1910 South Ave
La Crosse, WI 54601
Phone (608) 775-2287

1000 N Oak Ave
Marshfield, WI 54449
Phone (715) 387-5111

1102 S Center Ave
Merrill, WI 54452
Phone (715) 536-3399

N3708 River Ave
Neillsville, WI 54456
Phone (715) 743-3101

1700 W Stout St
Rice Lake, WI 54868
Phone (715) 236-6133

Interoperability endpoints

  • Direct secure messaging: jfeldman635536@direct.gundersenhealth.org

Organizations & group practices 19

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 19

Hospital & facility affiliations 7

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": "1277769600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764806400000",
    "number": "1104137710",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1200 N BEAVER ST",
            "city": "FLAGSTAFF",
            "state": "AZ",
            "postal_code": "860013118",
            "telephone_number": "928-779-3366"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1200 N BEAVER ST",
            "city": "FLAGSTAFF",
            "state": "AZ",
            "postal_code": "860013118",
            "telephone_number": "928-779-3366"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1000 N OAK AVE",
            "address_purpose": "LOCATION",
            "city": "Marshfield",
            "state": "WI",
            "postal_code": "544495703",
            "country_code": "US",
            "telephone_number": "715-387-5511",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1836 South Ave",
            "address_purpose": "LOCATION",
            "city": "LA Crosse",
            "state": "WI",
            "postal_code": "546015429",
            "country_code": "US",
            "telephone_number": "608-782-7300",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "5100 W Taft Rd Ste 3E",
            "address_purpose": "LOCATION",
            "city": "Liverpool",
            "state": "NY",
            "postal_code": "130883809",
            "country_code": "US",
            "telephone_number": "315-452-2350",
            "fax_number": "315-452-2355",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "FELDMAN",
        "first_name": "JACOB",
        "middle_name": "STEPHEN",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2010-06-29",
        "last_updated": "2025-12-04",
        "certification_date": "2025-12-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Y00000X",
            "taxonomy_group": "",
            "desc": "Otolaryngology",
            "state": "WI",
            "license": "57661-20",
            "primary": false
        },
        {
            "code": "207Y00000X",
            "taxonomy_group": "",
            "desc": "Otolaryngology",
            "state": "AZ",
            "license": "64925",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "137469",
            "state": "AZ"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Flagstaff, AZ

Sources for this page

Verify at the official NPI Registry.