Richard Merrick, MD
NPI 1972662559 · Addiction Medicine (Internal Medicine) Physician · Harbor City, CA
Richard Merrick, MD is a Addiction Medicine (Internal Medicine) Physician provider in Harbor City, CA (NPI 1972662559).
Provider details
- NPI number
- 1972662559
- Entity type
- Individual
- Primary specialty
- Addiction Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G13551 (CA)
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
19 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
- 2006-12-08
- Last updated
- 2008-09-23
Frequently asked questions
- What is Richard Merrick's NPI number?
- Richard Merrick's National Provider Identifier (NPI) is 1972662559, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Richard Merrick's specialty?
- Richard Merrick is listed in the NPPES registry with a primary specialty of Addiction Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Richard Merrick located?
- Richard Merrick's practice location on file with NPPES is 25825 Vermont Ave, Harbor City, CA 90710-3518.
- What is Richard Merrick's phone number?
- The practice phone number listed in the NPPES registry for Richard Merrick is (310) 325-5111.
- Is Richard Merrick's NPI active?
- Yes — Richard Merrick's NPI (1972662559) is active in the NPPES registry as of the last update on 2008-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.