Dr. Karl Greer, MD

Dr. Greer practices at Rohnert Park Health Center in Petaluma, California.

Dr. Greer's NPI, 1396010740, was assigned on March 19, 2012. Dr. Greer graduated from McGovern Medical School in 2012. Dr. Greer holds California license A127109.

Dr. Greer's primary practice is Rohnert Park Health Center, at 1179 N McDowell Blvd, Petaluma, CA 94954 in Sonoma County. The practice phone is (707) 559-7500.

Dr. Greer's primary practice is Rohnert Park Health Center in Petaluma, California. Dr. Greer is also affiliated with Petaluma Valley Hospital. The medical group on file is Palo Alto Foundation Medical Group. Dmand AI also links Dr. Greer to 2 more hospitals, 3 medical groups, 2 community health centers, 1 group practice or clinic and 1 home health agency, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Greer practices, 7 sites in all. Vendor and product names are available with a free account.

Family medicine is Dr. Greer's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Greer is board certified in family medicine by the American Board of Family Medicine. Dr. Greer is licensed in California.

Dmand AI lists acute diabetes, acute sinusitis, acute skin infection, ADHD, alcohol use disorders, alzheimer's disease, anxiety and arthritis among the conditions Dr. Greer treats.

CMS data shows 76 Medicare services from Dr. Greer across 3 procedure codes in 2024, for 58 Medicare patients. Medicare paid $7,775 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 58 Medicare patients who saw Dr. Greer in 2024. The largest group is 65 to 74, with 30 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 74% are also on Medicaid. Their average risk score is 2.98, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Greer's median patient age at 65, with 43% women.

In 2024, Dr. Greer wrote 2,724 Medicare Part D claims for 211 patients. 85% of them were for generic drugs. CMS names the drug for 2,113 of them, across 78 drugs with 11 or more claims each, at $191,597 in total drug cost. In 2023, CMS named 2,067 claims across 73 drugs.

Dr. Greer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

CMS Open Payments shows 4 general payments to Dr. Greer from 3 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $203.

Dr. Greer graduated from McGovern Medical School in 2012.

Dr. Greer is in network with 10 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.