Mark Lindenbaum, M.D., PHD
NPI 1639139306 · Geriatric Medicine (Internal Medicine) Physician · Bellingham, WA
Mark Lindenbaum, M.D., PHD is a Geriatric Medicine (Internal Medicine) Physician provider in Bellingham, WA (NPI 1639139306).
Provider details
- NPI number
- 1639139306
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PHD
- Sex
- Male
- Sole proprietor
- No
- License
- MD00025775 (WA)
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
- 2006-03-25
- Last updated
- 2010-10-04
Frequently asked questions
- What is Mark Lindenbaum's NPI number?
- Mark Lindenbaum's National Provider Identifier (NPI) is 1639139306, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Lindenbaum's specialty?
- Mark Lindenbaum is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Lindenbaum located?
- Mark Lindenbaum's practice location on file with NPPES is 3015 Squalicum Pkwy, Bellingham, WA 98225-1945.
- What is Mark Lindenbaum's phone number?
- The practice phone number listed in the NPPES registry for Mark Lindenbaum is (360) 715-4186.
- Is Mark Lindenbaum's NPI active?
- Yes — Mark Lindenbaum's NPI (1639139306) is active in the NPPES registry as of the last update on 2010-10-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.