IndividualActive
John Schwartz, MD
NPI 1629026737 · Nephrology Physician · Boston, MA
John Schwartz, MD is a Nephrology Physician provider in Boston, MA (NPI 1629026737).
Provider details
- NPI number
- 1629026737
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 30789 (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
725 Albany St
Shapiro 7, Suite a
Boston, MA 02118-2526
Phone: (617) 414-8601
Fax: (617) 414-8664
Street-level locationGet directions
Mailing address
720 Harrison Ave
Boston, MA 02118-2371
Registry dates
- Enumerated
- 2006-05-04
- Last updated
- 2015-03-23
Frequently asked questions
- What is John Schwartz's NPI number?
- John Schwartz's National Provider Identifier (NPI) is 1629026737, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Schwartz's specialty?
- John Schwartz is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is John Schwartz located?
- John Schwartz's practice location on file with NPPES is 725 Albany St, Boston, MA 02118-2526.
- What is John Schwartz's phone number?
- The practice phone number listed in the NPPES registry for John Schwartz is (617) 414-8601.
- Is John Schwartz's NPI active?
- Yes — John Schwartz's NPI (1629026737) is active in the NPPES registry as of the last update on 2015-03-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.