Aaron Epstein, M.D.
NPI 1134371743 · Maternal & Fetal Medicine Physician · Pasadena, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Aaron Epstein, M.D. is a Maternal & Fetal Medicine Physician provider in Pasadena, CA (NPI 1134371743).
Provider details
- NPI number
- 1134371743
- Entity type
- Individual
- Primary specialty
- Maternal & Fetal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A98154 (CA)
Specialties & taxonomies
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
17 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- 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.
$26 across 1 record (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
Registry dates
- Enumerated
- 2008-10-14
- Last updated
- 2023-12-28
- Certified
- 2023-12-28
Frequently asked questions
- What is Aaron Epstein's NPI number?
- Aaron Epstein's National Provider Identifier (NPI) is 1134371743, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Aaron Epstein's specialty?
- Aaron Epstein is listed in the NPPES registry with a primary specialty of Maternal & Fetal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Aaron Epstein located?
- Aaron Epstein's practice location on file with NPPES is 50 Alessandro Pl Ste 210, Pasadena, CA 91105-4005.
- What is Aaron Epstein's phone number?
- The practice phone number listed in the NPPES registry for Aaron Epstein is (626) 514-0060.
- Does Aaron Epstein accept Medicare?
- Aaron Epstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Aaron Epstein's NPI active?
- Yes — Aaron Epstein's NPI (1134371743) is active in the NPPES registry as of the last update on 2023-12-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.