Individual provider Active NPI

John William Duff, MD

  • Family Medicine Physician
  • Midland, MI
National Provider Identifier
1225125222
Registry record updated Apr 18, 2011
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
JD088515 Issued in MI
Practice address
2213 Dilloway Dr
Midland, MI 48640-6767
Phone
(989) 493-3882
NPI assigned
Oct 10, 2006
Last updated
Apr 18, 2011By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 18, 2011

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X 4301088515 MI
Family Medicine Physician 207Q00000X JD088515 MI Primary

Addresses

Primary practice location

2213 Dilloway Dr
Midland, MI 48640-6767

Mailing address

4009 Orchard Dr
Midland, MI 48640-6122
Phone (989) 839-3515

Other identifiers 1

IdentifierTypeStateIssuer
4301088515OtherMISTATE LICENSE

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MI
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 1

Enrollment IDStateProvider typePAC IDDetails
I20090202000576 MI Practitioner - Emergency MedicinePractitioner - Family Practice 7618031840 Reassigns benefits to 10 organizations

Care Compare profile

Medicare Care Compare
Specialty
Emergency MedicineAlso: Family Practice
Education
Other, 2006
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Mymichigan Medical Center MidlandGroup PAC ID 2264323633, 507 clinicians
Mymichigan Medical Center GladwinGroup PAC ID 0143262915, shared by 5 NPIs, 66 clinicians
Mymichigan Medical Center ClareGroup PAC ID 7012829773, shared by 9 NPIs, 128 clinicians

Practice addresses (Care Compare)

3009 N Saginaw Rd
Mymichigan Urgent Care Midland
Midland, MI 48640-4555
Phone (989) 633-1350

335 E Houghton Ave
West Branch, MI 48661-1127
Phone (989) 345-8130

602 Beech St
Suite 1100
Clare, MI 48617-1476
Phone (989) 386-9911

703 N McEwan St
Clare, MI 48617-1440
Phone (989) 802-5000

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
4301088515MIMDEmergency Medicine Physician
JD088515MIMDFamily Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Mymichigan Medical Center Gladwin Emergency Medicine Current Accepting new patients
Mymichigan Medical Center Clare Current Accepting new patients
Michigan Emergency Physicians LLP Emergency Medicine CurrentSince Apr 1, 2011 Accepting new patients
Michigan Emergency Physicians, LLP Emergency Medicine Current Accepting new patients
Mymichigan Medical Center Midland Family Medicine CurrentSince Jan 28, 2026 Accepting new patients
Mymichigan Medical Center Clare CurrentSince Nov 1, 2015 Accepting new patients
Mymichigan Medical Center Gladwin Current Accepting new patients
Mymichigan Medical Center Alma Family Medicine CurrentSince Jan 28, 2026 Accepting new patients
Mymichigan Medical Center Alma Family Medicine CurrentSince Jan 28, 2026 Accepting new patients
Northern Michigan Emergency Physicians, LLP Emergency Medicine Current Accepting new patients
Northern Michigan Emergency Physicians, LLP Emergency Medicine CurrentSince Jun 1, 2011 Accepting new patients
Sound Physicians Emergency Medicine of Michigan, PLLC Emergency Medicine CurrentSince May 15, 2017 Accepting new patients
Mymichigan Medical Center Gladwin CurrentSince Nov 1, 2015 Accepting new patients
Michigan Emergency Physicians LLP Emergency Medicine CurrentSince Apr 1, 2011 Accepting new patients
Mymichigan Medical Center Gladwin CurrentSince Nov 1, 2015 Accepting new patients
Northern Michigan Emergenc Physicians, LLP Emergency Medicine CurrentSince Jun 1, 2011 Accepting new patients
Mymichigan Medical Center Alpena CurrentSince Jan 28, 2026 Accepting new patients
Mymichigan Medical Center Clare Emergency Medicine CurrentSince Nov 1, 2015 Accepting new patients
Covenant Medical Center, Inc Family Medicine Past Accepting new patients

Locations

321 E Warwick Dr
Alma, MI 48801
Phone (989) 463-0957

1501 W Chisholm St
Alpena, MI 49707
Phone (989) 356-7000

393 Long Rapids Rd
Alpena, MI 49707
Phone (989) 354-4406

602 Beech St
Ste 1100
Clare, MI 48617
Phone (989) 386-9911

703 N McEwan St
Clare, MI 48617
Phone (989) 802-5000

5694 Midland Rd
Freeland, MI 48623
Phone (989) 695-2123

1105 E Cedar Ave
Gladwin, MI 48624
Phone (989) 246-6201

515 Quarter St
Gladwin, MI 48624
Phone (989) 246-6201

609 Quarter St
Gladwin, MI 48624
Phone (989) 246-6371

815 N Clare Ave
Harrison, MI 48625
Phone (989) 539-4096

168 S Howell St
Hillsdale, MI 49242
Phone (517) 437-4451

2618 W Sugnet Rd
Midland, MI 48640
Phone (989) 633-5237

3009 N Saginaw Rd
Midland, MI 48640
Phone (989) 633-1350

3009 N Saginaw Rd
#C
Midland, MI 48640
Phone (989) 633-1350

4000 Wellness Dr
Midland, MI 48670
Phone (844) 832-1956

4500 N Campus Ridge Dr
Midland, MI 48640
Phone (989) 837-9250

2463 S M 30
West Branch, MI 48661
Phone (517) 345-3660

335 E Houghton Ave
West Branch, MI 48661
Phone (989) 343-3154

Interoperability endpoints

  • Direct secure messaging: jduff5890@mymichiganhealth.midirect.net

Ownership & related parties

All facility ownership & control disclosures 3

Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.

FacilityTypeRoleSince
Mymichigan Medical Center GladwinGladwin, MI, CCN 231325 Hospital Corporate Director Jan 1, 2022
Mymichigan Medical Center GladwinGladwin, MI, CCN 23Z325 Hospital Corporate Director Jan 1, 2022
Mymichigan Health Park West BranchWest Branch, MI, CCN 238681 Rural health clinic Corporate Director Jan 1, 2022

Owned or controlled facilities with NPI records 3

Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.

Organizations & group practices 21

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

View all 21

Hospital & facility affiliations 5

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": "1160438400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1303084800000",
    "number": "1225125222",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4009 ORCHARD DR",
            "city": "MIDLAND",
            "state": "MI",
            "postal_code": "486406122",
            "telephone_number": "989-839-3515"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2213 DILLOWAY DR",
            "city": "MIDLAND",
            "state": "MI",
            "postal_code": "486406767",
            "telephone_number": "989-493-3882"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DUFF",
        "first_name": "JOHN",
        "middle_name": "WILLIAM",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-10-10",
        "last_updated": "2011-04-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "MI",
            "license": "4301088515",
            "primary": false
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "MI",
            "license": "JD088515",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE LICENSE",
            "identifier": "4301088515",
            "state": "MI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Midland, MI

Sources for this page

Verify at the official NPI Registry.