Individual provider Active NPI

John M Niehoff

  • Family Medicine Physician
  • Baltimore, MD
National Provider Identifier
1447229349
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
D0029197 Issued in MD
Practice address
9101 Franklin Square Dr
Suite 205
Baltimore, MD 21237-3936
Phone
(443) 777-2000
NPI assigned
Mar 14, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X D0029197 MD Primary

Addresses

Primary practice location

9101 Franklin Square Dr
Suite 205
Baltimore, MD 21237-3936

Mailing address

9101 Franklin Square Dr
Suite 205
Baltimore, MD 21237-3936
Phone (443) 777-2000

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MD
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
I20050106000669 MD Practitioner - Family PracticePractitioner - Sports Medicine 4880642818 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Family PracticeAlso: Sports Medicine
Education
Pennsylvania State University College of Medicine, 1981
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Medstar Medical Group II LLCGroup PAC ID 0547413825, 3,726 clinicians

Practice addresses (Care Compare)

9101 Franklin Square Dr
Suite 206
Baltimore, MD 21237-3936
Phone (410) 687-2300

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
82.34 of 100Reported as group
Quality
67.9
Promoting interoperability
100
Improvement activities
40
Cost
69.47

Procedures performed for Medicare patients

ProcedureNumber of procedures
Removal of skin lesions1-10
Removal or shaving of skin growth1-10

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
D0029197MDMDFamily Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Medstar Medical Group II LLC CurrentSince Mar 1, 2023 Accepting new patients
Frederick Health Hospital Inc Past Accepting new patients
Medstar Medical Group II LLC PastSince Mar 1, 2023 Accepting new patients
Helixcare Medical Group, LLC Past Accepting new patients

Locations

9101 Franklin Square Dr
Ste 206
Baltimore, MD 21237
Phone (410) 687-2300

1406 Crain Hwy S
Ste 106
Glen Burnie, MD 21061
Phone (410) 768-6440

9000 Franklin Square Dr
Rosedale, MD 21237
Phone (410) 682-7000

Organizations & group practices 4

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.

Hospital & facility affiliations 1

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": "1142294400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1447229349",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9101 FRANKLIN SQUARE DR",
            "address_2": "SUITE 205",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212373936",
            "telephone_number": "443-777-2000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9101 FRANKLIN SQUARE DR",
            "address_2": "SUITE 205",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212373936",
            "telephone_number": "443-777-2000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NIEHOFF",
        "first_name": "JOHN",
        "middle_name": "M",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-03-14",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "MD",
            "license": "D0029197",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Baltimore, MD

Sources for this page

Verify at the official NPI Registry.