Martha Hierro, MD Inc
NPI 1548883622 · Gastroenterology Physician · Santa Monica, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Martha Hierro, MD Inc is a Gastroenterology Physician organization in Santa Monica, CA (NPI 1548883622).
Provider details
- NPI number
- 1548883622
- Entity type
- Organization
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Pearl Boyd, Practice Manager(323) 493-1760
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
6 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
- 2020-05-22
- Last updated
- 2020-05-22
- Certified
- 2020-05-22
Frequently asked questions
- What is Martha Hierro, MD Inc's NPI number?
- Martha Hierro, MD Inc's National Provider Identifier (NPI) is 1548883622, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Martha Hierro, MD Inc?
- Martha Hierro, MD Inc is classified in the NPPES registry as Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Martha Hierro, MD Inc located?
- Martha Hierro, MD Inc's practice location on file with NPPES is 2021 Santa Monica Blvd Ste 335e, Santa Monica, CA 90404-2146.
- What is Martha Hierro, MD Inc's phone number?
- The practice phone number listed in the NPPES registry for Martha Hierro, MD Inc is (310) 471-9917.
- Does Martha Hierro, MD Inc accept Medicare?
- Martha Hierro, MD 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 Martha Hierro, MD Inc?
- The authorized official listed on Martha Hierro, MD Inc's NPPES record is Pearl Boyd, Practice Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Martha Hierro, MD Inc's NPI active?
- Yes — Martha Hierro, MD Inc's NPI (1548883622) is active in the NPPES registry as of the last update on 2020-05-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.