Heather Lewis, MD, MPH, MS
Heather Lewis, MD, MPH, MS is a provider specialising in Primary Care Clinic/Center in Fort Washington, MD, registered under NPI 1235314907. This provider registers 5 separate taxonomy codes, which usually means they practise across more than one recognised specialty. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
The practice address on file is 10903 INDIAN HEAD HWY STE 206A, Fort Washington, MD 20744. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| D0095834 | MD | Primary Care Clinic/Center primary |
| 0101246132 | VA | Military General Acute Care Hospital |
| 39020000X | VA | Internal Medicine Physician |
| 0101246132 | VA | Preventive Medicine/Occupational… |
| D0095834 | MD | Preventive Medicine/Occupational… |
| 0101246132 | VA | Public Health & General Preventive… |
| A159625 | CA | Public Health & General Preventive… |
| 0101246132 | VA | Primary Care Clinic/Center |
| D0095834 | MD | Public Health & General Preventive… |
Licences are recorded in 3 states: MD, VA, CA. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Internal Medicine
- PAC ID
- 0547708141
Medicare enrolment is recorded as approved under the provider type Practitioner - Internal Medicine. This means the provider is enrolled to bill Medicare, though it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
Licensed in 3 states
This provider holds licences in 3 states: California, Maryland and Virginia. The practice address on file is in Fort Washington, MD, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- A159625
- Specialty
- Public Health & General Preventive…
- Licence
- D0095834
- Specialty
- Primary Care Clinic/Center
- Licence
- 0101246132
- Specialty
- Military General Acute Care Hospital
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Primary Care covers
Definition to come... NUCC Health Care Provider Taxonomy, code 261QP2300X
All registered taxonomy codes
This provider registers 9 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 261QP2300X | Primary Care Clinic/Center Primary Care | D0095834 | MD | primary |
| 2865M2000X | Military General Acute Care Hospital Military General Acute Care Hospital | 0101246132 | VA | |
| 207R00000X | Internal Medicine Physician | 39020000X | VA | |
| 2083P0500X | Preventive Medicine/Occupational Environmental Medicine Physician Preventive Medicine/Occupational Environmental Medicine | 0101246132 | VA | |
| 2083P0500X | Preventive Medicine/Occupational Environmental Medicine Physician Preventive Medicine/Occupational Environmental Medicine | D0095834 | MD | |
| 2083P0901X | Public Health & General Preventive Medicine Physician Public Health & General Preventive Medicine | 0101246132 | VA | |
| 2083P0901X | Public Health & General Preventive Medicine Physician Public Health & General Preventive Medicine | A159625 | CA | |
| 261QP2300X | Primary Care Clinic/Center Primary Care | 0101246132 | VA | |
| 2083P0901X | Public Health & General Preventive Medicine Physician Public Health & General Preventive Medicine | D0095834 | MD |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1235314907 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 31, 2007 |
| Last updated | Jan 21, 2026 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | MD, MPH, MS |
| Practice address |
10903 INDIAN HEAD HWY STE 206A Fort Washington, MD 20744 (202) 379-8946 Fax (866) 531-7532 |
| Mailing address |
6139 OXON HILL RD # 1184 Oxon Hill, MD 20745 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 2 | 3 | 5 | 3 | 1 | 4 | 9 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 2 | 6 | 5 | 6 | 1 | 8 | 9 | 0 |
Sum = 63 · next multiple of 10 = 70 · check digit = 7 · actual last digit = 7
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.