NPPES file of Aug 9, 2026

Regan S. Douty, D.O.

Internal Medicine Physician · Redlands, CA

Regan S. Douty, D.O. is an internal medicine physician with a practice address in Redlands, California, and NPI 1295766442, issued on Jul 6, 2006. Check the license (California 20A7064, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1295766442
Name
Regan S. Douty
Credential
D.O.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
20A7064 CA
Self-reported in NPPES; status is on the state search
Practice location
2 W Fern Ave, Redlands, CA 92373
Phone
(909) 793-3311
Enumerated
Jul 6, 2006
Record last updated
Apr 30, 2026
Fax
(909) 796-4158
Medicaid ID
020A70640 CA
Medicare enrollment
Enrolled (PECOS I20060427000753); accepts Medicare assignment
Medical or professional school
College Of Osteo Med Of The Pacific At Pomona, 1996
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 2 W Fern Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Nkeiruka Abanobi, NPWomen's Health Nurse Practitioner1982009007
  2. Hanan Abu Alnaaj, MDFamily Medicine Physician1235319385
  3. James Agee, M.D.Urology Physician1851345722
  4. Arun Agrawal, D.O.Anesthesiology Physician1184677650
  5. Amanda Aguilera, M.D.Diagnostic Radiology Physician1679782049
  6. Onyinye Ahamba, M.DHospitalist Physician1164835237

Verify Regan S. Douty in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A7064
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

4.1 times the Medicare Part D claims of the average internal medicine physician in 2024

12,907 Medicare Part D claims for 910 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 133 claims were for opioids.

  1. Regan Douty12,907
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium1,296 claims
  2. Losartan Potassium670 claims
  3. Levothyroxine Sodium533 claims
  4. Amlodipine Besylate485 claims
  5. Omeprazole454 claims
  6. Lisinopril339 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Beaver Medical Group P CRedlands, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

56 internal medicine physician records list a practice address in Redlands

They are 56 of the 2,498 NPPES records with a practice address in Redlands, and 17,696 internal medicine physician records in California.

Other internal medicine physician records in California

  1. Jacob Aaron, MDSan Francisco, CA1407202518
  2. Alistair Aaronson, MDStanford, CA1457628760
  3. Jose Abad., MDSacramento, CA1144607219
  4. Donna Abare, MDOakland, CA1386722155
  5. Marce AbareScotts Valley, CA1457744708
  6. Samuel Abarte, M.D.Chula Vista, CA1578535498
  7. Alexander Abary, MDLong Beach, CA1104995919
  8. Luba Abascal, MDSan Francisco, CA1023180874
  9. Michael Abate, MDSacramento, CA1548248131
  10. Wali Abawi, D.O.Joshua Tree, CA1104362268

Common questions

What is Regan S. Douty, D.O.'s NPI number?

Regan S. Douty, D.O.'s National Provider Identifier (NPI) is 1295766442, issued on Jul 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Regan S. Douty, D.O. located?

The NPPES record lists a practice address at 2 W Fern Ave, Redlands, CA, 92373. Phone: (909) 793-3311. Providers update this record themselves, so call before visiting.

How can I verify Regan S. Douty, D.O.'s license?

NPPES lists California license number 20A7064, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Regan S. Douty, D.O. prescribe under Medicare Part D?

In 2024, Regan S. Douty, D.O. had 12,907 Medicare Part D claims for 910 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.