Abigail Armstrong, M.D.
NPI 1316309172 · Obstetrics & Gynecology Physician · Santa Monica, CA
Enrolled with Medicare as Order and Referring Only - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Abigail Armstrong, M.D. is a Obstetrics & Gynecology Physician provider in Santa Monica, CA (NPI 1316309172).
Provider details
- NPI number
- 1316309172
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD216591 (OR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
10 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
8 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$237 across 9 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (7)
- 4150 Regents Park Row Ste 321La Jolla, CA 92037-9124Phone: (619) 673-8658
- 4756 El Camino RealLos Altos, CA 94022-1330Phone: (650) 445-4724
- 4321 Birch StNewport Beach, CA 92660-1923Phone: (949) 432-7438
- 88 Sutter StSan Francisco, CA 94104-4900Phone: (628) 777-7064
- 1700 N Main StWalnut Creek, CA 94596-4105Phone: (925) 322-2115
- 811 Stewart StSeattle, WA 98101-1305Phone: (206) 736-5839
- 2501 Ne 134th St Ste 100Vancouver, WA 98686-3027Phone: (360) 535-7590
Registry dates
- Enumerated
- 2016-03-22
- Last updated
- 2024-05-14
- Certified
- 2024-05-14
Frequently asked questions
- What is Abigail Armstrong's NPI number?
- Abigail Armstrong's National Provider Identifier (NPI) is 1316309172, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Abigail Armstrong's specialty?
- Abigail Armstrong is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Abigail Armstrong located?
- Abigail Armstrong's practice location on file with NPPES is 500 Broadway Ste 7, Santa Monica, CA 90401-2988.
- What is Abigail Armstrong's phone number?
- The practice phone number listed in the NPPES registry for Abigail Armstrong is (323) 410-1291.
- Does Abigail Armstrong accept Medicare?
- Abigail Armstrong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Abigail Armstrong's NPI active?
- Yes — Abigail Armstrong's NPI (1316309172) is active in the NPPES registry as of the last update on 2024-05-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.