Mohammed Ahmed, MD
NPI 1639818321 · Internal Medicine Physician · Williamsville, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mohammed Ahmed, MD is a Internal Medicine Physician provider in Williamsville, NY (NPI 1639818321).
Provider details
- NPI number
- 1639818321
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 125080314 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
4 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
5 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$103 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (4)
- 200 7th StBuffalo, NY 14201-2161Phone: (609) 585-1122Fax: (609) 585-0309
- 100 High StBuffalo, NY 14203-1126Phone: (716) 859-5600
- 2799 Sheridan DrTonawanda, NY 14150-9463Phone: (609) 585-1122Fax: (609) 585-0309
- 193 S Union RdWilliamsville, NY 14221-6531Phone: (609) 585-1122Fax: (609) 585-0309
Registry dates
- Enumerated
- 2022-06-01
- Last updated
- 2026-02-23
- Certified
- 2026-02-23
Frequently asked questions
- What is Mohammed Ahmed's NPI number?
- Mohammed Ahmed's National Provider Identifier (NPI) is 1639818321, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mohammed Ahmed's specialty?
- Mohammed Ahmed is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mohammed Ahmed located?
- Mohammed Ahmed's practice location on file with NPPES is 1540 Maple Rd, Williamsville, NY 14221-3647.
- What is Mohammed Ahmed's phone number?
- The practice phone number listed in the NPPES registry for Mohammed Ahmed is (716) 568-3600.
- Does Mohammed Ahmed accept Medicare?
- Mohammed Ahmed is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mohammed Ahmed's NPI active?
- Yes — Mohammed Ahmed's NPI (1639818321) is active in the NPPES registry as of the last update on 2026-02-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.