Richard H. Greengold, M.D.
Internal Medicine Physician · Laguna Hills, CA
Richard H. Greengold, M.D. is an internal medicine physician with a practice address in Laguna Hills, California, and NPI 1477740488, issued on Oct 3, 2007. Check the license (California G37860, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Richard H. Greengold
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G37860 CA
Self-reported in NPPES; status is on the state search - Practice location
- 24953 Paseo DE Valencia Ste 15B, Laguna Hills, CA 92653
- Phone
- (949) 770-2080
- Enumerated
- Oct 3, 2007
- Record last updated
- Oct 3, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20160706002122); accepts Medicare assignment
- Medical or professional school
- Stanford University School Of Medicine, 1977
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Richard H. Greengold in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G37860Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
183 Medicare Part D claims for 78 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Doxycycline Hyclate60 claims
- Sulfamethoxazole-Trimethoprim18 claims
- Amoxicillin15 claims
- Amoxicillin-Clavulanate Potass14 claims
- Cephalexin14 claims
- Levofloxacin12 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: $203.25
4 payments; by number, the most common kind was food and beverage; the largest payer was Kerecis Limited. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Healogics Specialty Physicians OF Maryland LLCLeonardtown, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Richard H. Greengold among 17,696 internal medicine physician records in California
Richard H. Greengold, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1977 · median 2004 among the 11,065 with a school on file
- Record last updated2007 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
56 internal medicine physician records list a practice address in Laguna Hills
They are 56 of the 2,069 NPPES records with a practice address in Laguna Hills, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Laguna Hills → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Humberto Boccardo, M.D.Laguna Hills, CA 926531689679458
- Arthur Daigneault, MDLaguna Hills, CA 926531609845361
- Raymond Fernandez, MDLaguna Hills, CA 926531629039532
- Ali Ghazvini, M.D.Laguna Hills, CA 926531104865153
- Brian HenryLaguna Hills, CA 926531629047824
- Robert Lazatin, M.D.Laguna Hills, CA 926531700865755
- Alan Lo, MDLaguna Hills, CA 926531982683637
- Lawrence Luppi, M.D.Laguna Hills, CA 926531952356727
Common questions
What is Richard H. Greengold, M.D.'s NPI number?
Richard H. Greengold, M.D.'s National Provider Identifier (NPI) is 1477740488, issued on Oct 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Richard H. Greengold, M.D. located?
The NPPES record lists a practice address at 24953 Paseo DE Valencia Ste 15B, Laguna Hills, CA, 92653. Phone: (949) 770-2080. Providers update this record themselves, so call before visiting.
How can I verify Richard H. Greengold, M.D.'s license?
NPPES lists California license number G37860, 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 Richard H. Greengold, M.D. prescribe under Medicare Part D?
In 2024, Richard H. Greengold, M.D. had 183 Medicare Part D claims for 78 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.