Gary J. Grossman, M.D.
Internal Medicine Physician · Las Vegas, NV
Gary J. Grossman, M.D. is an internal medicine physician with a practice address in Las Vegas, Nevada, and NPI 1487679445, issued on Jul 12, 2006. Check the license (Nevada 6261, as entered in NPPES) on the Nevada State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Gary J. Grossman
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 6261 NV
Self-reported in NPPES; status is on the state search - Practice location
- 201 N Buffalo Dr, Las Vegas, NV 89145
- Phone
- (702) 242-2737
- Enumerated
- Jul 12, 2006
- Record last updated
- Oct 2, 2023
- Fax
- (702) 255-3170
- Medicaid ID
- 2019119 NV
- Medicare enrollment
- Enrolled (PECOS I20120208000592); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,229 in Nevada → Look up another NPI →
Also registered at 201 N Buffalo Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Babak Ghadishah, D.O.Internal Medicine Physician1346272408
Verify Gary J. Grossman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNevada State Board of Medical Examiners
Search for license 6261Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.3 times the Medicare Part D claims of the average internal medicine physician in 2024
13,587 Medicare Part D claims for 1,065 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 765 claims were for opioids.
Most prescribed
- Atorvastatin Calcium805 claims
- Levothyroxine Sodium689 claims
- Amlodipine Besylate598 claims
- Lisinopril464 claims
- Alprazolam433 claims
- Hydrocodone-Acetaminophen430 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.
The MIPS final score for 2023 (Medicare payment program): 33.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,155.63
60 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. 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
- Internal Medicine Spec OF Southern NV Grossman Panikkar Ghadishah WhiLas Vegas, NV
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gary J. Grossman among 1,229 internal medicine physician records in Nevada
Gary J. Grossman, M.D. is one of 1,229 internal medicine physician records with a practice address in Nevada. 82% 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, 59% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1988 · median 2006 among the 772 with a school on file
- Record last updated2023 · 43% 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 Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
716 internal medicine physician records list a practice address in Las Vegas
They are 716 of the 65,269 NPPES records with a practice address in Las Vegas, and 1,229 internal medicine physician records in Nevada.
All 1,229 in Nevada → Every provider in Las Vegas → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Marcelino Belizario, M.D.Las Vegas, NV 891451639172448
- Ama Brobbey, M.D.Las Vegas, NV 891451124086491
- Pauline Chao, MDLas Vegas, NV 891451912087305
- Juan Chavez, MDLas Vegas, NV 891451972500924
- Babak Ghadishah, D.O.Las Vegas, NV 891451346272408
- Dan Hansen, MDLas Vegas, NV 891451538110457
- Pablo Joya, MDLas Vegas, NV 891451508969007
- Karyn Ofa, D.O.Las Vegas, NV 891451295891687
Common questions
What is Gary J. Grossman, M.D.'s NPI number?
Gary J. Grossman, M.D.'s National Provider Identifier (NPI) is 1487679445, issued on Jul 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gary J. Grossman, M.D. located?
The NPPES record lists a practice address at 201 N Buffalo Dr, Las Vegas, NV, 89145. Phone: (702) 242-2737. Providers update this record themselves, so call before visiting.
How can I verify Gary J. Grossman, M.D.'s license?
NPPES lists Nevada license number 6261, as entered by the provider. Search the Nevada State Board of Medical Examiners at https://medboard.nv.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gary J. Grossman, M.D. prescribe under Medicare Part D?
In 2024, Gary J. Grossman, M.D. had 13,587 Medicare Part D claims for 1,065 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Gary J. Grossman, M.D.'s MIPS final score?
The 2023 MIPS final score is 33.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.