William Litterer, D.O.
NPI 1104990019 · Geriatric Medicine (Internal Medicine) Physician · Falmouth, MA
William Litterer, D.O. is a Geriatric Medicine (Internal Medicine) Physician provider in Falmouth, MA (NPI 1104990019).
Provider details
- NPI number
- 1104990019
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 72177 (MA)
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
- 2006-11-20
- Last updated
- 2007-07-09
Frequently asked questions
- What is William Litterer's NPI number?
- William Litterer's National Provider Identifier (NPI) is 1104990019, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Litterer's specialty?
- William Litterer is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is William Litterer located?
- William Litterer's practice location on file with NPPES is 360 Gifford St, Falmouth, MA 02540-2912.
- What is William Litterer's phone number?
- The practice phone number listed in the NPPES registry for William Litterer is (508) 457-0215.
- Is William Litterer's NPI active?
- Yes — William Litterer's NPI (1104990019) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.