Ngonack Joan Ngembus, MD
Internal Medicine Physician · Upper Marlboro, MD
Ngonack Joan Ngembus, MD is an internal medicine physician with a practice address in Upper Marlboro, Maryland, and NPI 1891436325, issued on Apr 6, 2022. Check the license (Maryland D0103106, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Ngonack Joan Ngembus
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- D0103106 MD
Self-reported in NPPES; status is on the state search - Practice location
- 14314 Old Marlboro Pike, Upper Marlboro, MD 20772
- Phone
- (301) 627-3500
- Enumerated
- Apr 6, 2022
- Record last updated
- Dec 11, 2025
- Medicare enrollment
- Enrolled (PECOS I20250721000897); accepts Medicare assignment
- Medical or professional school
- State University Of Ny Upstate Medical University, 2025
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,904 in Maryland → Look up another NPI →
Also registered at 14314 Old Marlboro Pike
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Albert Takem, MDInternal Medicine Physician1437414455
Verify Ngonack Joan Ngembus in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0103106Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average internal medicine physician in 2024
250 Medicare Part D claims for 45 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate22 claims
- Lisinopril17 claims
- Carvedilol16 claims
- Rosuvastatin Calcium14 claims
- Sertraline Hcl14 claims
- Tradjenta12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Maryland Primary Care And WellnessUpper Marlboro, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ngonack Joan Ngembus among 3,904 internal medicine physician records in Maryland
Ngonack Joan Ngembus, MD is one of 3,904 internal medicine physician records with a practice address in Maryland. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 95% of them.
- NPI issued2022 · 95% of these records are older, 2% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2025 · median 2003 among the 2,445 with a school on file
- Record last updated2025 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
14 internal medicine physician records list a practice address in Upper Marlboro
They are 14 of the 1,638 NPPES records with a practice address in Upper Marlboro, and 3,904 internal medicine physician records in Maryland.
All 3,904 in Maryland → Every provider in Upper Marlboro → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Imelda Miranda, M.D.Upper Marlboro, MD 207721578510681
- Sisom Osia, M.DUpper Marlboro, MD 207721154442366
- Delbert Perkins, MDUpper Marlboro, MD 207721760570923
- Yetunde Sannoh, MDUpper Marlboro, MD 207721871752717
- Albert Takem, MDUpper Marlboro, MD 207721437414455
- Elizabeth Biru, MDLargo, MD 207741457342230
- Doreen Blake, M.D.Largo, MD 207741043209331
- George Bone, MDLargo, MD 207741528028297
Common questions
What is Ngonack Joan Ngembus, MD's NPI number?
Ngonack Joan Ngembus, MD's National Provider Identifier (NPI) is 1891436325, issued on Apr 6, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Ngonack Joan Ngembus, MD located?
The NPPES record lists a practice address at 14314 Old Marlboro Pike, Upper Marlboro, MD, 20772. Phone: (301) 627-3500. Providers update this record themselves, so call before visiting.
How can I verify Ngonack Joan Ngembus, MD's license?
NPPES lists Maryland license number D0103106, 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.
How much does Ngonack Joan Ngembus, MD prescribe under Medicare Part D?
In 2024, Ngonack Joan Ngembus, MD had 250 Medicare Part D claims for 45 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. 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.