Zachary Simpson, MD
NPI 1073514121 · Geriatric Medicine (Internal Medicine) Physician · Williamsport, PA
Zachary Simpson, MD is a Geriatric Medicine (Internal Medicine) Physician provider in Williamsport, PA (NPI 1073514121).
Provider details
- NPI number
- 1073514121
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD065196L (PA)
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-10
- Last updated
- 2015-11-09
Frequently asked questions
- What is Zachary Simpson's NPI number?
- Zachary Simpson's National Provider Identifier (NPI) is 1073514121, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zachary Simpson's specialty?
- Zachary Simpson is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Zachary Simpson located?
- Zachary Simpson's practice location on file with NPPES is 1100 Grampian Blvd, Williamsport, PA 17701-1909.
- What is Zachary Simpson's phone number?
- The practice phone number listed in the NPPES registry for Zachary Simpson is (570) 320-7691.
- Is Zachary Simpson's NPI active?
- Yes — Zachary Simpson's NPI (1073514121) is active in the NPPES registry as of the last update on 2015-11-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.