Marissa Holden, MD
NPI 1912521063 · Reproductive Endocrinology Physician · Los Angeles, CA
Enrolled with Medicare as Order and Referring Only - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Holden, MD is a Reproductive Endocrinology Physician provider in Los Angeles, CA (NPI 1912521063).
Provider details
- NPI number
- 1912521063
- Entity type
- Individual
- Primary specialty
- Reproductive Endocrinology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 195573 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
6 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.
$1,034 across 4 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
Registry dates
- Enumerated
- 2020-06-04
- Last updated
- 2024-06-21
- Certified
- 2024-06-12
Frequently asked questions
- What is Marissa Holden's NPI number?
- Marissa Holden's National Provider Identifier (NPI) is 1912521063, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Holden's specialty?
- Marissa Holden is listed in the NPPES registry with a primary specialty of Reproductive Endocrinology Physician (Allopathic & Osteopathic Physicians).
- Where is Marissa Holden located?
- Marissa Holden's practice location on file with NPPES is 8635 W 3rd St Ste 160w, Los Angeles, CA 90048-6103.
- What is Marissa Holden's phone number?
- The practice phone number listed in the NPPES registry for Marissa Holden is (310) 423-0895.
- Does Marissa Holden accept Medicare?
- Marissa Holden is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Holden's NPI active?
- Yes — Marissa Holden's NPI (1912521063) is active in the NPPES registry as of the last update on 2024-06-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.