Active NPI
Marshall Phillip Keys, MD
- Ophthalmology Physician
- Rockville, MD
National Provider Identifier
1083687032
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Ophthalmology Physician
- License
- D0010545
- Practice address
- 121 Congressional LN
Ste 601
Rockville, MD 20852-1542 - Phone
- (301) 231-7070
- Fax
- (301) 231-7073
- NPI assigned
- Feb 9, 2006
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Ophthalmology Physician | 207W00000X | D0010545 | MD | Primary |
Addresses
Primary practice location
121 Congressional LN
Ste 601
Rockville, MD 20852-1542
Mailing address
121 Congressional LN
Ste 601
Rockville, MD 20852-1542
Phone (301) 231-7070
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)
- Not enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| D0010545 | MD | MD | Ophthalmology Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1139443200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1083687032",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "121 CONGRESSIONAL LN",
"address_2": "STE 601",
"city": "ROCKVILLE",
"state": "MD",
"postal_code": "208521542",
"telephone_number": "301-231-7070",
"fax_number": "301-231-7073"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "121 CONGRESSIONAL LN",
"address_2": "STE 601",
"city": "ROCKVILLE",
"state": "MD",
"postal_code": "208521542",
"telephone_number": "301-231-7070",
"fax_number": "301-231-7073"
}
],
"practiceLocations": [],
"basic": {
"last_name": "KEYS",
"first_name": "MARSHALL",
"middle_name": "PHILLIP",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-02-09",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "207W00000X",
"taxonomy_group": "",
"desc": "Ophthalmology",
"state": "MD",
"license": "D0010545",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Rockville, MD
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.