Hilary Don, MD
Internal Medicine Physician · Baltimore, MD
Hilary Don, MD is an internal medicine physician with a practice address in Baltimore, Maryland, and NPI 1255499273, issued on Dec 4, 2006. Check the license (Maryland D0035102, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Hilary Don
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- D0035102 MD
Self-reported in NPPES; status is on the state search - Practice location
- 201 East University Parkway, Baltimore, MD 21218
- Phone
- (410) 464-6238
- Enumerated
- Dec 4, 2006
- Record last updated
- Aug 18, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicaid ID
- 478841900 MD
- Medicare enrollment
- Enrolled (PECOS I20050825000800); may accept Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 1984
- 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 201 East University Parkway
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Hilary Don in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0035102Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average internal medicine physician in 2024
7,818 Medicare Part D claims for 319 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 318 claims were for opioids.
Most prescribed
- Atorvastatin Calcium407 claims
- Amlodipine Besylate405 claims
- Furosemide253 claims
- Eliquis229 claims
- Gabapentin190 claims
- Metformin Hcl190 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.
The MIPS final score for 2023 (Medicare payment program): 76.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Hilary Don MD LLCBaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hilary Don among 3,904 internal medicine physician records in Maryland
Hilary Don, 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 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
- Graduated1984 · median 2003 among the 2,445 with a school on file
- Record last updated2014 · 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 →
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Common questions
What is Hilary Don, MD's NPI number?
Hilary Don, MD's National Provider Identifier (NPI) is 1255499273, issued on Dec 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Hilary Don, MD located?
The NPPES record lists a practice address at 201 East University Parkway, Baltimore, MD, 21218. Phone: (410) 464-6238. Providers update this record themselves, so call before visiting.
How can I verify Hilary Don, MD's license?
NPPES lists Maryland license number D0035102, 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 Hilary Don, MD prescribe under Medicare Part D?
In 2024, Hilary Don, MD had 7,818 Medicare Part D claims for 319 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Hilary Don, MD's MIPS final score?
The 2023 MIPS final score is 76.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.