William Keys, M.D., PH.D
Specialist · Manchester, MD
William Keys, M.D., PH.D is a specialist with a practice address in Manchester, Maryland, and NPI 1376537266, issued on Sep 7, 2005. Check the license (Maryland D0041962, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Keys
- Credential
- M.D., PH.D
- Primary taxonomy
- Specialist 174400000X
- License number
- D0041962 MD
Self-reported in NPPES; status is on the state search - Practice location
- 2975 Manchester RD, Manchester, MD 21102
- Phone
- (410) 374-8100
- Enumerated
- Sep 7, 2005
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (410) 374-8104
- Medicare enrollment
- Enrolled (PECOS I20100819001100); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 1988
- Entity
- Type 1 · individual
8 nearest specialist records → All 938 in Maryland → Look up another NPI →
Verify William Keys in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license D0041962Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
43% fewer Medicare Part D claims than the average specialist in 2024
785 Medicare Part D claims for 108 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.
Most prescribed
- Gabapentin104 claims
- Primidone49 claims
- Pramipexole Dihydrochloride48 claims
- Lamotrigine35 claims
- Qulipta33 claims
- Topiramate27 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.
William Keys among 938 specialist records in Maryland
William Keys, M.D., PH.D is one of 938 specialist records with a practice address in Maryland. 36% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 83% newer
- In a Medicare fileYes · 36% of these records are
- In the CMS Doctors and Clinicians fileYes · 23% of these records are
- Graduated1988 · median 1989 among the 220 with a school on file
- Record last updated2007 · 72% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 specialist record lists a practice address in Manchester
They are 1 of the 53 NPPES records with a practice address in Manchester, and 938 specialist records in Maryland.
All 938 in Maryland → Every provider in Manchester → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Christy Shiloh, MT-BCMillersville, MD 211081174962658
- Robert Smith, MDMillersville, MD 211081013059294
- Bobbie SpannMillersville, MD 211081982302345
- David Buchholz, M.D.Lutherville, MD 210931487703096
- Rebecca Burke, CMTTimonium, MD 210931144489881
- Kathie FedeleLutherville, MD 210931275560625
- Susan Hale, OTR/LLutherville, MD 210931215235684
- August King, MDLutherville, MD 210931629431671
Common questions
What is William Keys, M.D., PH.D's NPI number?
William Keys, M.D., PH.D's National Provider Identifier (NPI) is 1376537266, issued on Sep 7, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William Keys, M.D., PH.D located?
The NPPES record lists a practice address at 2975 Manchester RD, Manchester, MD, 21102. Phone: (410) 374-8100. Providers update this record themselves, so call before visiting.
How can I verify William Keys, M.D., PH.D's license?
NPPES lists Maryland license number D0041962, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does William Keys, M.D., PH.D prescribe under Medicare Part D?
In 2024, William Keys, M.D., PH.D had 785 Medicare Part D claims for 108 beneficiaries; the average among specialist prescribers was 1,380. 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.