Harold M Lin MD a Medical Corporation
NPI 1326158635 · Internal Medicine Physician · Los Alamitos, CA
Harold M Lin MD a Medical Corporation is a Internal Medicine Physician organization in Los Alamitos, CA (NPI 1326158635).
Provider details
- NPI number
- 1326158635
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Harold Lin, President(562) 594-6693
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
- 2006-08-30
- Last updated
- 2008-05-29
Frequently asked questions
- What is Harold M Lin MD a Medical Corporation's NPI number?
- Harold M Lin MD a Medical Corporation's National Provider Identifier (NPI) is 1326158635, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Harold M Lin MD a Medical Corporation?
- Harold M Lin MD a Medical Corporation is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Harold M Lin MD a Medical Corporation located?
- Harold M Lin MD a Medical Corporation's practice location on file with NPPES is 3791 Katella Ave, Los Alamitos, CA 90720-2000.
- What is Harold M Lin MD a Medical Corporation's phone number?
- The practice phone number listed in the NPPES registry for Harold M Lin MD a Medical Corporation is (562) 594-6693.
- Who is the authorized official for Harold M Lin MD a Medical Corporation?
- The authorized official listed on Harold M Lin MD a Medical Corporation's NPPES record is Harold Lin, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Harold M Lin MD a Medical Corporation's NPI active?
- Yes — Harold M Lin MD a Medical Corporation's NPI (1326158635) is active in the NPPES registry as of the last update on 2008-05-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.