Harold Campbell, M.D.
NPI 1588606438 · Family Medicine Physician · Longview, TX
Enrolled with Medicare as Order and Referring Only - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Harold Campbell, M.D. is a Family Medicine Physician provider in Longview, TX (NPI 1588606438).
Provider details
- NPI number
- 1588606438
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- M3954 (TX)
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
20 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
- 2006-06-12
- Last updated
- 2011-02-08
Frequently asked questions
- What is Harold Campbell's NPI number?
- Harold Campbell's National Provider Identifier (NPI) is 1588606438, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Harold Campbell's specialty?
- Harold Campbell is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Harold Campbell located?
- Harold Campbell's practice location on file with NPPES is 1107 E Marshall Ave, Longview, TX 75601-5602.
- What is Harold Campbell's phone number?
- The practice phone number listed in the NPPES registry for Harold Campbell is (903) 758-2610.
- Does Harold Campbell accept Medicare?
- Harold Campbell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Harold Campbell's NPI active?
- Yes — Harold Campbell's NPI (1588606438) is active in the NPPES registry as of the last update on 2011-02-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.