Active NPI
Michael Gray, MD
- Family Medicine Physician
- California, MD
National Provider Identifier
1215931605
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Family Medicine Physician
- License
- D0053271
- Practice address
- PO Box 1207
California, MD 20619-1207 - Phone
- (301) 850-2606
- Fax
- (301) 850-1161
- NPI assigned
- Jun 13, 2005
- Last updated
- Feb 10, 2026
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 15
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Family Medicine Physician | 207Q00000X | 35.123546 | OH | |
| Family Medicine Physician | 207Q00000X | 8826135-1205 | UT | |
| Family Medicine Physician | 207Q00000X | ME173382 | FL | |
| Family Medicine Physician | 207Q00000X | M-12235 | ID | |
| Family Medicine Physician | 207Q00000X | MED-PHYS-LIC-28431 | MT | |
| Family Medicine Physician | 207Q00000X | MD-17467 | HI | |
| Family Medicine Physician | 207Q00000X | 34313 | NH | |
| Family Medicine Physician | 207Q00000X | 60528 | KY | |
| Family Medicine Physician | 207Q00000X | D0053271 | MD | Primary |
| Family Medicine Physician | 207Q00000X | 11059 | SD | |
| Family Medicine Physician | 207Q00000X | 2013042132 | MO | |
| Family Medicine Physician | 207Q00000X | C1-0027803 | DE | |
| Family Medicine Physician | 207Q00000X | 30329 | OK | |
| Family Medicine Physician | 207Q00000X | 4301513466 | MI | |
| Family Medicine Physician | 207Q00000X | DR.0053188 | CO |
Addresses
Primary practice location
PO Box 1207
California, MD 20619-1207
Mailing address
PO Box 1207
California, MD 20619-1207
Phone (301) 850-2606
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| DR.0053188 | CO | MD | Family Medicine Physician |
| C1-0027803 | DE | MD | Family Medicine Physician |
| ME173382 | FL | MD | Family Medicine Physician |
| MD-17467 | HI | MD | Family Medicine Physician |
| M-12235 | ID | MD | Family Medicine Physician |
| 60528 | KY | MD | Family Medicine Physician |
| D0053271 | MD | MD | Family Medicine Physician |
| 4301513466 | MI | MD | Family Medicine Physician |
| 2013042132 | MO | MD | Family Medicine Physician |
| MED-PHYS-LIC-28431 | MT | MD | Family Medicine Physician |
| 34313 | NH | MD | Family Medicine Physician |
| 35.123546 | OH | MD | Family Medicine Physician |
| 30329 | OK | MD | Family Medicine Physician |
| 11059 | SD | MD | Family Medicine Physician |
| 8826135-1205 | UT | MD | Family Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Frederick Health Hospital Inc | Past | Accepting new patients |
Organizations & group practices 1
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.
-
dba Frederick Health Hospital
- General Acute Care Hospital
- Frederick, MD
- NPI 1538165527
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1118620800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1770681600000",
"number": "1215931605",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 1207",
"city": "CALIFORNIA",
"state": "MD",
"postal_code": "206191207",
"telephone_number": "301-850-2606",
"fax_number": "301-850-1161"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "PO BOX 1207",
"city": "CALIFORNIA",
"state": "MD",
"postal_code": "206191207",
"telephone_number": "301-850-2606",
"fax_number": "301-850-1161"
}
],
"practiceLocations": [],
"basic": {
"last_name": "GRAY",
"first_name": "MICHAEL",
"credential": "MD",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2005-06-13",
"last_updated": "2026-02-10",
"certification_date": "2026-02-10",
"status": "A"
},
"taxonomies": [
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "OH",
"license": "35.123546",
"primary": false
},
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "UT",
"license": "8826135-1205",
"primary": false
},
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "FL",
"license": "ME173382",
"primary": false
},
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "ID",
"license": "M-12235",
"primary": false
},
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "MT",
"license": "MED-PHYS-LIC-28431",
"primary": false
},
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "HI",
"license": "MD-17467",
"primary": false
},
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "NH",
"license": "34313",
"primary": false
},
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "KY",
"license": "60528",
"primary": false
},
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "MD",
"license": "D0053271",
"primary": true
},
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "SD",
"license": "11059",
"primary": false
},
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "MO",
"license": "2013042132",
"primary": false
},
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "DE",
"license": "C1-0027803",
"primary": false
},
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "OK",
"license": "30329",
"primary": false
},
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "MI",
"license": "4301513466",
"primary": false
},
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "CO",
"license": "DR.0053188",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in California, MD
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 10, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.