Douglas Hay, MD
NPI 1386690980 · Internal Medicine Physician · Colton, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Douglas Hay, MD is a Internal Medicine Physician provider in Colton, CA (NPI 1386690980).
Provider details
- NPI number
- 1386690980
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- License
- G47396 (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
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
- 2006-05-25
- Last updated
- 2007-07-08
Frequently asked questions
- What is Douglas Hay's NPI number?
- Douglas Hay's National Provider Identifier (NPI) is 1386690980, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas Hay's specialty?
- Douglas Hay is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Douglas Hay located?
- Douglas Hay's practice location on file with NPPES is 1300 E Cooley Dr, Colton, CA 92324-3905.
- What is Douglas Hay's phone number?
- The practice phone number listed in the NPPES registry for Douglas Hay is (909) 370-4100.
- Does Douglas Hay accept Medicare?
- Douglas Hay is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Douglas Hay's NPI active?
- Yes — Douglas Hay's NPI (1386690980) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.