Robert K. Omogrosso, DO
Family Medicine Physician · Grass Valley, CA
Robert K. Omogrosso, DO is a family medicine physician with a practice address in Grass Valley, California, and NPI 1902253610, issued on May 23, 2016. Check the license (California 20A15941, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Robert K. Omogrosso
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A15941 CA
Self-reported in NPPES; status is on the state search - Practice location
- 155 Glasson Way, Grass Valley, CA 95945
- Phone
- (530) 274-6761
- Enumerated
- May 23, 2016
- Record last updated
- Jun 26, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (530) 274-6175
- Medicare enrollment
- Enrolled (PECOS I20191009000445); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 155 Glasson Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jed ColvinFamily Nurse Practitioner1528315538
Verify Robert K. Omogrosso in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A15941Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average family medicine physician in 2024
384 Medicare Part D claims for 169 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Amoxicillin-Clavulanate Potass21 claims
- Doxycycline Hyclate17 claims
- Furosemide17 claims
- Eliquis16 claims
- Lisinopril16 claims
- Prednisone15 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.
Bills Medicare through one group practice
- Sutter Valley Medical FoundationSacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert K. Omogrosso among 17,133 family medicine physician records in California
Robert K. Omogrosso, DO is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 76% of them.
- NPI issued2016 · 76% of these records are older, 21% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2016 · median 2005 among the 10,652 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
36 family medicine physician records list a practice address in Grass Valley
They are 36 of the 1,540 NPPES records with a practice address in Grass Valley, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Grass Valley → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Garrett Eckerling, M.D.Grass Valley, CA 959451215937388
- Jill Fitzpatrick, MDGrass Valley, CA 959451689640658
- Linda Foshagen, DOGrass Valley, CA 959451568420750
- Constance Gaulter, M.D.Grass Valley, CA 959451508881459
- John Jackson, MDGrass Valley, CA 959451487689840
- Byron Lake, M.D.Grass Valley, CA 959451891832242
- Frank Lang, M.D.Grass Valley, CA 959451417942939
- Veronica Minier, MDGrass Valley, CA 959451720050909
Common questions
What is Robert K. Omogrosso, DO's NPI number?
Robert K. Omogrosso, DO's National Provider Identifier (NPI) is 1902253610, issued on May 23, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Robert K. Omogrosso, DO located?
The NPPES record lists a practice address at 155 Glasson Way, Grass Valley, CA, 95945. Phone: (530) 274-6761. Providers update this record themselves, so call before visiting.
How can I verify Robert K. Omogrosso, DO's license?
NPPES lists California license number 20A15941, 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 K. Omogrosso, DO prescribe under Medicare Part D?
In 2024, Robert K. Omogrosso, DO had 384 Medicare Part D claims for 169 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.