Steward Medical Group, Inc
NPI 1629398219 · Specialist · Watertown, MA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steward Medical Group, Inc is a Specialist organization in Watertown, MA (NPI 1629398219).
Provider details
- NPI number
- 1629398219
- Entity type
- Organization
- Primary specialty
- SpecialistOther Service Providers
- Parent organization
- Steward Health Care System LLC
- Organization subpart
- Yes
- Authorized official
- Amy Guay, President of Steward Medical Group(469) 341-8848
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 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
Other names (DBA / former)
- Other name
- Steward Physician Network, Inc
- Other name
- Steward Physician Network, Inc
Registry dates
- Enumerated
- 2010-06-04
- Last updated
- 2023-02-16
- Certified
- 2023-02-16
Frequently asked questions
- What is Steward Medical Group, Inc's NPI number?
- Steward Medical Group, Inc's National Provider Identifier (NPI) is 1629398219, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Steward Medical Group, Inc?
- Steward Medical Group, Inc is classified in the NPPES registry as Specialist (Other Service Providers).
- Where is Steward Medical Group, Inc located?
- Steward Medical Group, Inc's practice location on file with NPPES is 9 Galen St, Watertown, MA 02472-4515.
- What is Steward Medical Group, Inc's phone number?
- The practice phone number listed in the NPPES registry for Steward Medical Group, Inc is (615) 467-4474.
- Does Steward Medical Group, Inc accept Medicare?
- Steward Medical Group, Inc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Steward Medical Group, Inc?
- The authorized official listed on Steward Medical Group, Inc's NPPES record is Amy Guay, President of Steward Medical Group. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Steward Medical Group, Inc's NPI active?
- Yes — Steward Medical Group, Inc's NPI (1629398219) is active in the NPPES registry as of the last update on 2023-02-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.