Kenneth Randell Grossman, M.D.
Ophthalmology Physician · Merced, CA
Kenneth Randell Grossman, M.D. is an ophthalmology physician with a practice address in Merced, California, and NPI 1184684672, issued on Mar 27, 2006. Check the license (California G50711, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kenneth Randell Grossman
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- G50711 CA
Self-reported in NPPES; status is on the state search - Practice location
- 580 Collins Dr, Merced, CA 95348
- Phone
- (209) 383-0989
- Enumerated
- Mar 27, 2006
- Record last updated
- Jul 6, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (209) 383-6836
- Medicaid ID
- GR0087430 CA
- Medicare enrollment
- Enrolled (PECOS I20090618000739); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 1982
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 580 Collins Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dennis Hartman, O.D.Optometrist1922078294
- Omran Nattouf, PAPhysician Assistant1609685627
Verify Kenneth Randell Grossman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G50711Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.9 times the Medicare Part D claims of the average ophthalmology physician in 2024
7,374 Medicare Part D claims for 1,527 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 43% of claims. 68 claims were for opioids.
Most prescribed
- Latanoprost1,387 claims
- Prednisolone Acetate1,258 claims
- Erythromycin676 claims
- Ciprofloxacin Hcl613 claims
- Timolol Maleate607 claims
- Azelastine Hcl510 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $525.48
29 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,221 providers of this specialty with any payment received $4,535.02 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
- Kenneth R Grossman M D IncMerced, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kenneth Randell Grossman among 2,899 ophthalmology physician records in California
Kenneth Randell Grossman, M.D. is one of 2,899 ophthalmology 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 45% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1982 · median 2001 among the 1,907 with a school on file
- Record last updated2009 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California.
All 2,899 in California → Every provider in Merced → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Priyanka Jain, MDMerced, CA 953481275791881
- Kevin Craig, MDModesto, CA 953501912089061
- Keith Davis, MDModesto, CA 953501639268089
- Brian Fechter, MDModesto, CA 953501225181399
- Anthony Guida, MDModesto, CA 953501346239803
- Doowon Huh, MDModesto, CA 953501992382022
- John Latham, MDModesto, CA 953501952359259
- Sharon Lutosky, MDModesto, CA 953501972592434
Common questions
What is Kenneth Randell Grossman, M.D.'s NPI number?
Kenneth Randell Grossman, M.D.'s National Provider Identifier (NPI) is 1184684672, issued on Mar 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kenneth Randell Grossman, M.D. located?
The NPPES record lists a practice address at 580 Collins Dr, Merced, CA, 95348. Phone: (209) 383-0989. Providers update this record themselves, so call before visiting.
How can I verify Kenneth Randell Grossman, M.D.'s license?
NPPES lists California license number G50711, 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 Kenneth Randell Grossman, M.D. prescribe under Medicare Part D?
In 2024, Kenneth Randell Grossman, M.D. had 7,374 Medicare Part D claims for 1,527 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Kenneth Randell Grossman, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.