NPPES file of Aug 9, 2026

Robert T. Wang, PHD MD

Geriatric Medicine (Internal Medicine) Physician · Los Angeles, CA

Robert T. Wang, PHD MD is a geriatric medicine (internal medicine) physician with a practice address in Los Angeles, California, and NPI 1235293648, issued on Dec 20, 2006. Check the license (California G40989, 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
1235293648
Name
Robert T. Wang
Credential
PHD MD
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License number
G40989 CA
Self-reported in NPPES; status is on the state search
Practice location
5901 W Olympic Blvd, Los Angeles, CA 90036
Phone
(323) 931-3100
Enumerated
Dec 20, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(323) 931-0030
Medicaid ID
9745630 CA
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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8 nearest geriatric medicine (internal medicine) physician records → All 532 in California → Look up another NPI →

Also registered at 5901 W Olympic Blvd

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

  1. Maina Berger, M.DSpecialist1962415224
  2. Ludmila Bess, M.D.Gynecology Physician1780633537
  3. Gerald Chatman, PAPhysician Assistant1922178029
  4. Andrew Chuang, M.D.Internal Medicine Physician1528070166
  5. Helder De Paiva, M.D.Nephrology Physician1174610273
  6. Ann Easley, NPNurse Practitioner1295720548

Verify Robert T. Wang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G40989    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

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64% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024

1,514 Medicare Part D claims for 54 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 44 claims were for opioids.

  1. Robert Wang1,514
  2. Specialty average4,246

Most prescribed

  1. Escitalopram Oxalate60 claims
  2. Warfarin Sodium57 claims
  3. Amlodipine Besylate50 claims
  4. Pantoprazole Sodium49 claims
  5. Furosemide46 claims
  6. Eliquis45 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: $318.80

14 payments; by number, the most common kind was food and beverage; the largest payer was Dexcom, Inc. The 1,004 providers of this specialty with any payment received $1,720.82 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Robert Wang$318.80
  2. Specialty average$1,720.82

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

Robert T. Wang among 532 geriatric medicine (internal medicine) physician records in California

Robert T. Wang, PHD MD is one of 532 geriatric medicine (internal medicine) physician records with a practice address in California. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 46% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileNo · 51% of these records are
  • Record last updated2007 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Geriatric Medicine (Internal Medicine) Physician providers in California

There are 532 geriatric medicine (internal medicine) physician records in California.

All 532 in California → Every provider in Los Angeles → Geriatric Medicine (Internal Medicine) Physician nationwide →

The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes

  1. Michelle Eslami, MDLos Angeles, CA 900361689627143
  2. Blanche Watson, M.D.Los Angeles, CA 900361992866487
  3. Robert Waxler, M.D.Los Angeles, CA 900361457412942
  4. Andrew Chan, MDLos Angeles, CA 900331104975507
  5. Azmy Ghaly, MEDICAL DOCTORLos Angeles, CA 900331194899336
  6. Dohwa Kim, M.D.Los Angeles, CA 900331528083557
  7. Caitlyn Kuwata, M.D.Los Angeles, CA 900331093167611
  8. Francisco Quijas, MEDICAL DOCTORLos Angeles, CA 900331659445823

Common questions

What is Robert T. Wang, PHD MD's NPI number?

Robert T. Wang, PHD MD's National Provider Identifier (NPI) is 1235293648, issued on Dec 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robert T. Wang, PHD MD located?

The NPPES record lists a practice address at 5901 W Olympic Blvd, Los Angeles, CA, 90036. Phone: (323) 931-3100. Providers update this record themselves, so call before visiting.

How can I verify Robert T. Wang, PHD MD's license?

NPPES lists California license number G40989, 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 T. Wang, PHD MD prescribe under Medicare Part D?

In 2024, Robert T. Wang, PHD MD had 1,514 Medicare Part D claims for 54 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.