Harold Lin, M.D.
NPI 1467472472 · Internal Medicine Physician · Los Alamitos, CA
Harold Lin, M.D. is a Internal Medicine Physician provider in Los Alamitos, CA (NPI 1467472472).
Provider details
- NPI number
- 1467472472
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A29948 (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
- 2006-07-20
- Last updated
- 2008-02-28
Frequently asked questions
- What is Harold Lin's NPI number?
- Harold Lin's National Provider Identifier (NPI) is 1467472472, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Harold Lin's specialty?
- Harold Lin is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Harold Lin located?
- Harold Lin's practice location on file with NPPES is 3791 Katella Ave, Los Alamitos, CA 90720-2000.
- What is Harold Lin's phone number?
- The practice phone number listed in the NPPES registry for Harold Lin is (562) 594-6693.
- Is Harold Lin's NPI active?
- Yes — Harold Lin's NPI (1467472472) is active in the NPPES registry as of the last update on 2008-02-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.