Piotr L. Grojec, M.D.
Internal Medicine Physician · District Heights, MD
Piotr L. Grojec, M.D. is an internal medicine physician with a practice address in District Heights, Maryland, and NPI 1639124696, issued on May 24, 2006. Check the license (Maryland D0046671, as entered in NPPES) on the Maryland Board of Physicians; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Piotr L. Grojec
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- D0046671 MD
Self-reported in NPPES; status is on the state search - Practice location
- 6400 Marlboro Pike, District Heights, MD 20747
- Phone
- (301) 736-7000
- Enumerated
- May 24, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (301) 736-6916
- Entity
- Type 1 · individual
Also registered at 6400 Marlboro Pike
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Piotr L. Grojec in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0046671Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2 internal medicine physician records list a practice address in District Heights
They are 2 of the 243 NPPES records with a practice address in District Heights, and 3,904 internal medicine physician records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2 in District Heights → All 3,904 in Maryland → Every provider in District Heights →
Other internal medicine physician records in Maryland
- Eduardo Abarca Rojas, M.D.Parkville, MD1538447628
- Rasheed Abassi, M.D.Clinton, MD1376608620
- Ghulam Abbas, MDFrederick, MD1477658045
- Shamima Abbas, MDKensington, MD1750445896
- Nourelhuda Abbas Hamed, MDSilver Spring, MD1699339473
- Arsalan Abbasi, MDWestminster, MD1942762604
- Hamdi AbdeenGaithersburg, MD1245972413
- Mukemil Abdella, M.D.Glenn Dale, MD1871603381
- Suzan Abdo, MDClarksville, MD1588631824
- Madeeha Abdul GhaffarElkton, MD1194276063
Common questions
What is Piotr L. Grojec, M.D.'s NPI number?
Piotr L. Grojec, M.D.'s National Provider Identifier (NPI) is 1639124696, issued on May 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Piotr L. Grojec, M.D. located?
The NPPES record lists a practice address at 6400 Marlboro Pike, District Heights, MD, 20747. Phone: (301) 736-7000. Providers update this record themselves, so call before visiting.
How can I verify Piotr L. Grojec, M.D.'s license?
NPPES lists Maryland license number D0046671, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.