Nan Ni, M.D.
Internal Medicine Physician · Baltimore, MD
Nan Ni, M.D. is an internal medicine physician with a practice address in Baltimore, Maryland, and NPI 1518926500, issued on Mar 20, 2006. Check the license (Maryland D0056254, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Nan Ni
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- D0056254 MD
Self-reported in NPPES; status is on the state search - Practice location
- 200 E 33RD St Ste 471, Baltimore, MD 21218
- Phone
- (410) 261-8019
- Enumerated
- Mar 20, 2006
- Record last updated
- Apr 1, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicaid ID
- 905900800 MD
- Medicare enrollment
- Enrolled (PECOS I20041217000237); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,904 in Maryland → Look up another NPI →
Verify Nan Ni in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0056254Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.0 times the Medicare Part D claims of the average internal medicine physician in 2024
6,471 Medicare Part D claims for 323 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 196 claims were for opioids.
Most prescribed
- Amlodipine Besylate570 claims
- Atorvastatin Calcium342 claims
- Hydrochlorothiazide258 claims
- Albuterol Sulfate Hfa248 claims
- Lisinopril202 claims
- Tramadol Hcl174 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.
Industry payments in 2024: $208.03
12 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Suburban/nrh Medical Rehabilitation IncBethesda, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nan Ni among 3,904 internal medicine physician records in Maryland
Nan Ni, M.D. 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 55% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1982 · median 2003 among the 2,445 with a school on file
- Record last updated2016 · 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).
1,278 internal medicine physician records list a practice address in Baltimore
They are 1,278 of the 35,183 NPPES records with a practice address in Baltimore, and 3,904 internal medicine physician records in Maryland.
All 3,904 in Maryland → Every provider in Baltimore → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Stuart Bell, M.D.Baltimore, MD 212181740243682
- Stephanie Detterline, MDBaltimore, MD 212181104890367
- Patricia Disharoon, MDBaltimore, MD 212181730175886
- Veronica Epstein, M.D.Baltimore, MD 212181962465195
- Miguel Karacuschansky, M.D.Baltimore, MD 212181467560383
- Theresa Lorch, M.D.Baltimore, MD 212181104888122
- James Phong Luong, M.D.Baltimore, MD 212181104938521
- Hassan Nasser, M.D.Baltimore, MD 212181912961665
Common questions
What is Nan Ni, M.D.'s NPI number?
Nan Ni, M.D.'s National Provider Identifier (NPI) is 1518926500, issued on Mar 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nan Ni, M.D. located?
The NPPES record lists a practice address at 200 E 33RD St Ste 471, Baltimore, MD, 21218. Phone: (410) 261-8019. Providers update this record themselves, so call before visiting.
How can I verify Nan Ni, M.D.'s license?
NPPES lists Maryland license number D0056254, 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 Nan Ni, M.D. prescribe under Medicare Part D?
In 2024, Nan Ni, M.D. had 6,471 Medicare Part D claims for 323 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.