Hyman Gross, MD, Inc
NPI 1275893521 · Neurology Physician · Santa Monica, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hyman Gross, MD, Inc is a Neurology Physician organization in Santa Monica, CA (NPI 1275893521).
Provider details
- NPI number
- 1275893521
- Entity type
- Organization
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Holly Gross, Office Manager(310) 998-2287
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
14 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
- 2012-05-21
- Last updated
- 2012-05-21
Frequently asked questions
- What is Hyman Gross, MD, Inc's NPI number?
- Hyman Gross, MD, Inc's National Provider Identifier (NPI) is 1275893521, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Hyman Gross, MD, Inc?
- Hyman Gross, MD, Inc is classified in the NPPES registry as Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Hyman Gross, MD, Inc located?
- Hyman Gross, MD, Inc's practice location on file with NPPES is 2021 Santa Monica Blvd, Santa Monica, CA 90404-2208.
- What is Hyman Gross, MD, Inc's phone number?
- The practice phone number listed in the NPPES registry for Hyman Gross, MD, Inc is (310) 998-2287.
- Does Hyman Gross, MD, Inc accept Medicare?
- Hyman Gross, 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 Hyman Gross, MD, Inc?
- The authorized official listed on Hyman Gross, MD, Inc's NPPES record is Holly Gross, Office Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Hyman Gross, MD, Inc's NPI active?
- Yes — Hyman Gross, MD, Inc's NPI (1275893521) is active in the NPPES registry as of the last update on 2012-05-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.