Alan Lazaroff, M.D.
NPI 1538191887 · Geriatric Medicine (Internal Medicine) Physician · Denver, CO
Alan Lazaroff, M.D. is a Geriatric Medicine (Internal Medicine) Physician provider in Denver, CO (NPI 1538191887).
Provider details
- NPI number
- 1538191887
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 21556 (CO)
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
- 2006-07-07
- Last updated
- 2007-07-08
Frequently asked questions
- What is Alan Lazaroff's NPI number?
- Alan Lazaroff's National Provider Identifier (NPI) is 1538191887, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alan Lazaroff's specialty?
- Alan Lazaroff is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Alan Lazaroff located?
- Alan Lazaroff's practice location on file with NPPES is 1601 Lowell Blvd, Denver, CO 80204-1559.
- What is Alan Lazaroff's phone number?
- The practice phone number listed in the NPPES registry for Alan Lazaroff is (303) 825-1234.
- Is Alan Lazaroff's NPI active?
- Yes — Alan Lazaroff's NPI (1538191887) 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.