IndividualActive
John Lazarus, M.D.
NPI 1528064011 · Nephrology Physician · Lexington, MA
John Lazarus, M.D. is a Nephrology Physician provider in Lexington, MA (NPI 1528064011).
Provider details
- NPI number
- 1528064011
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- License
- 32449 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
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
95 Hayden Ave
Lexington, MA 02421-7942
Phone: (781) 402-9000
Fax: (781) 402-9582
Street-level locationGet directions
Mailing address
60 Old Colony Rd
Wellesley Hills, MA 02481-2844
Registry dates
- Enumerated
- 2005-06-21
- Last updated
- 2007-07-09
Frequently asked questions
- What is John Lazarus's NPI number?
- John Lazarus's National Provider Identifier (NPI) is 1528064011, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Lazarus's specialty?
- John Lazarus is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is John Lazarus located?
- John Lazarus's practice location on file with NPPES is 95 Hayden Ave, Lexington, MA 02421-7942.
- What is John Lazarus's phone number?
- The practice phone number listed in the NPPES registry for John Lazarus is (781) 402-9000.
- Is John Lazarus's NPI active?
- Yes — John Lazarus's NPI (1528064011) 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.