NPPES file of Aug 9, 2026

Robert Douglas Collins, M.D.

Internal Medicine Physician · Encino, CA

Robert Douglas Collins, M.D. is an internal medicine physician with a practice address in Encino, California, and NPI 1669671350, issued on Jul 13, 2007. Check the license (California G42307, 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
1669671350
Name
Robert Douglas Collins
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
G42307 CA
Self-reported in NPPES; status is on the state search
Practice location
5400 Balboa Blvd, Encino, CA 91316
Phone
(818) 849-6777
Enumerated
Jul 13, 2007
Record last updated
Apr 6, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(818) 858-1139
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 5400 Balboa Blvd

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

  1. David Astrachan, D.D.S.Dentist1881693448
  2. Daniel Azani, D.D.S., M.S.Orthodontics and Dentofacial Orthopedics Dentistry1417090473
  3. Carl Blau, M.D.Specialist1598774259
  4. Timothy Casarez, MDPediatric Cardiology Physician1992782148
  5. Tracey Cooperstein, DMDGeneral Practice Dentistry1518190248
  6. Niloufar Ehya, M.D.Anesthesiology Physician1942226345

Verify Robert Douglas Collins in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G42307    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.

73% fewer Medicare Part D claims than the average internal medicine physician in 2024

863 Medicare Part D claims for 125 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 152 claims were for opioids.

  1. Robert Collins863
  2. Specialty average3,176

Most prescribed

  1. Losartan Potassium66 claims
  2. Hydrocodone-Acetaminophen57 claims
  3. Oxycodone Hcl44 claims
  4. Alprazolam41 claims
  5. Hydrochlorothiazide27 claims
  6. Hydralazine Hcl23 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.

44 internal medicine physician records list a practice address in Encino

They are 44 of the 3,136 NPPES records with a practice address in Encino, and 17,696 internal medicine physician records in California.

All 44 in Encino → All 17,696 in California → Every provider in Encino →

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 Robert Douglas Collins, M.D.'s NPI number?

Robert Douglas Collins, M.D.'s National Provider Identifier (NPI) is 1669671350, issued on Jul 13, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Robert Douglas Collins, M.D. located?

The NPPES record lists a practice address at 5400 Balboa Blvd, Encino, CA, 91316. Phone: (818) 849-6777. Providers update this record themselves, so call before visiting.

How can I verify Robert Douglas Collins, M.D.'s license?

NPPES lists California license number G42307, 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 Robert Douglas Collins, M.D. prescribe under Medicare Part D?

In 2024, Robert Douglas Collins, M.D. had 863 Medicare Part D claims for 125 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.