Alan Withiam, M.D.
NPI 1871650697 · Family Medicine Physician · Waterloo, NY
Enrolled with Medicare as Practitioner - Addiction Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alan Withiam, M.D. is a Family Medicine Physician provider in Waterloo, NY (NPI 1871650697).
Provider details
- NPI number
- 1871650697
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 155579 (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
19 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-02
- Last updated
- 2007-07-08
Frequently asked questions
- What is Alan Withiam's NPI number?
- Alan Withiam's National Provider Identifier (NPI) is 1871650697, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alan Withiam's specialty?
- Alan Withiam is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Alan Withiam located?
- Alan Withiam's practice location on file with NPPES is 1083 Waterloo Geneva Rd, Waterloo, NY 13165-1202.
- What is Alan Withiam's phone number?
- The practice phone number listed in the NPPES registry for Alan Withiam is (607) 869-5609.
- Does Alan Withiam accept Medicare?
- Alan Withiam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alan Withiam's NPI active?
- Yes — Alan Withiam's NPI (1871650697) 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.