Sherry Withiam Leitch, MD
NPI 1659341956 · Neurology Physician · N Tonawanda, NY
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sherry Withiam Leitch, MD is a Neurology Physician provider in N Tonawanda, NY (NPI 1659341956).
Provider details
- NPI number
- 1659341956
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- License
- 202583-1 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 64 | 12 |
| Topiramate | 17 | — |
| Carbamazepinebrand: Tegretol | 16 | — |
| Phenobarbital | 13 | — |
| Oxcarbazepine | 12 | — |
| Ubrogepantbrand: Ubrelvy | 12 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-26
- Last updated
- 2007-07-08
Frequently asked questions
- What is Sherry Withiam Leitch's NPI number?
- Sherry Withiam Leitch's National Provider Identifier (NPI) is 1659341956, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sherry Withiam Leitch's specialty?
- Sherry Withiam Leitch is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Sherry Withiam Leitch located?
- Sherry Withiam Leitch's practice location on file with NPPES is 415 Tremont St, N Tonawanda, NY 14120-6135.
- What is Sherry Withiam Leitch's phone number?
- The practice phone number listed in the NPPES registry for Sherry Withiam Leitch is (716) 689-1901.
- Does Sherry Withiam Leitch accept Medicare?
- Sherry Withiam Leitch is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sherry Withiam Leitch's NPI active?
- Yes — Sherry Withiam Leitch's NPI (1659341956) 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.