Stephanie Koontz, MD
NPI 1225108160 · Obstetrics & Gynecology Physician · Somerville, MA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephanie Koontz, MD is a Obstetrics & Gynecology Physician provider in Somerville, MA (NPI 1225108160).
Provider details
- NPI number
- 1225108160
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 220863 (MA)
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
- 2006-11-08
- Last updated
- 2011-07-18
Frequently asked questions
- What is Stephanie Koontz's NPI number?
- Stephanie Koontz's National Provider Identifier (NPI) is 1225108160, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephanie Koontz's specialty?
- Stephanie Koontz is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Stephanie Koontz located?
- Stephanie Koontz's practice location on file with NPPES is 40 Holland St, Somerville, MA 02144-2705.
- What is Stephanie Koontz's phone number?
- The practice phone number listed in the NPPES registry for Stephanie Koontz is (617) 629-6330.
- Does Stephanie Koontz accept Medicare?
- Stephanie Koontz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephanie Koontz's NPI active?
- Yes — Stephanie Koontz's NPI (1225108160) is active in the NPPES registry as of the last update on 2011-07-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.