William Keys, M.D., PH.D
NPI 1376537266 · Specialist · Manchester, MD
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Keys, M.D., PH.D is a Specialist provider in Manchester, MD (NPI 1376537266).
Provider details
- NPI number
- 1376537266
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D., PH.D
- Sex
- Male
- Sole proprietor
- Yes
- License
- D0041962 (MD)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
723 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 318 | $16 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 263 | $180 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 96 | $129 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 46 | $229 |
Typical Medicare-allowed amounts for these services range $16–$229 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 104 | 26 |
| Primidone | 49 | 14 |
| Pramipexole Di-Hclbrand: Pramipexole Dihydrochloride | 48 | 12 |
| Lamotrigine | 35 | — |
| Atogepantbrand: Qulipta | 33 | — |
| Topiramate | 27 | — |
| Diazepam | 25 | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-07
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Keys's NPI number?
- William Keys's National Provider Identifier (NPI) is 1376537266, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Keys's specialty?
- William Keys is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is William Keys located?
- William Keys's practice location on file with NPPES is 2975 Manchester Rd, Manchester, MD 21102-1802.
- What is William Keys's phone number?
- The practice phone number listed in the NPPES registry for William Keys is (410) 374-8100.
- Does William Keys accept Medicare?
- William Keys is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Keys's NPI active?
- Yes — William Keys's NPI (1376537266) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.