Registry data as of Aug 27, 2026

Robert Reiss, MD

Internal Medicine Physician · Rolling Hills Estates, CA

Robert Reiss, MD is an internal medicine physician with a practice address in Rolling Hills Estates, California, and NPI 1588746150, issued on Oct 20, 2006. Check the license (California G32383, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1588746150
Name
Robert Reiss
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
G32383 CA
Self-reported in NPPES; status is on the state search
Practice location
501 Deep Valley Dr Ste 100, Rolling Hills Estates, CA 90274
Phone
(310) 670-1120
Enumerated
Oct 20, 2006
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.
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Also registered at 501 Deep Valley Dr Ste 100

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

  1. Hanbyul ChoiInternal Medicine Physician1164885174
  2. Suzanne Homer, M.D.Diagnostic Radiology Physician1194767582
  3. Preeti Jhorar, M.D.Dermatology Physician1366872293
  4. John Livoni, MDDiagnostic Radiology Physician1033200902
  5. Kimngan NguyenFamily Medicine Physician1902366552
  6. Daniel O'BrienCardiovascular Disease Physician1023512431

Verify Robert Reiss in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G32383
    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.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

25% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,086 Medicare Part D claims for 238 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.

  1. Robert Reiss2,086
  2. Specialty average2,785

Most prescribed

  1. Atorvastatin Calcium288 claims
  2. Lisinopril147 claims
  3. Amlodipine Besylate143 claims
  4. Hydrochlorothiazide131 claims
  5. Metformin Hcl85 claims
  6. Levothyroxine Sodium84 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.

Industry payments in 2024: $399.49

14 payments, mostly food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 65,274 providers of this specialty with any payment received $2,536.66 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Robert Reiss$399.49
  2. Specialty average$2,536.66

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital or facility affiliation

  1. The Regents OF The University OF CaliforniaSanta Monica, CA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

9 internal medicine physician records list a Rolling Hills Estates practice address

They are 9 of the 208 NPPES records with a Rolling Hills Estates practice address, and 20,403 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 Robert Reiss, MD's NPI number?

Robert Reiss, MD's National Provider Identifier (NPI) is 1588746150, issued on Oct 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robert Reiss, MD located?

The NPPES record lists a practice address at 501 Deep Valley Dr Ste 100, Rolling Hills Estates, CA, 90274. Phone: (310) 670-1120. Providers update this record themselves, so call before visiting.

How can I verify Robert Reiss, MD's license?

NPPES lists California license number G32383, 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 Reiss, MD prescribe under Medicare Part D?

In 2024, Robert Reiss, MD had 2,086 Medicare Part D claims for 238 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.