Carolyn Rhene Merkouris, MD
Specialist · Woodland, CA
Carolyn Rhene Merkouris, MD is a specialist with a practice address in Woodland, California, and NPI 1174503395, issued on Jan 23, 2006. Check the license (California G71953, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Carolyn Rhene Merkouris
- Credential
- MD
- Primary taxonomy
- Specialist 174400000X
- License numbers
- G71953 CA
4440 AK
Self-reported in NPPES; status is on the state search - Practice location
- 1321 Cottonwood St FL 3, Woodland, CA 95695
- Phone
- (530) 668-2600
- Enumerated
- Jan 23, 2006
- Record last updated
- Apr 22, 2026
- Fax
- (530) 661-2410
- Medicare enrollment
- Enrolled (PECOS I20090428000509); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 1987
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Also registered at 1321 Cottonwood St FL 3
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Natasha Simon, PA-CPhysician Assistant1508535485
Verify Carolyn Rhene Merkouris in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license G71953Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average specialist in 2024
102 Medicare Part D claims for 36 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Estradiol28 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: $272.30
10 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 5,844 providers of this specialty with any payment received $4,760.79 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.
One hospital affiliation
- Southeast Alaska Regional Health ConsortiumJuneau, AK · Critical Access Hospitals3 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Carolyn Rhene Merkouris among 5,749 specialist records in California
Carolyn Rhene Merkouris, MD is one of 5,749 specialist records with a practice address in California. 30% 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, 60% newer
- In a Medicare fileYes · 30% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated1987 · median 1989 among the 1,075 with a school on file
- Record last updated2026 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in California
There are 5,749 specialist records in California.
All 5,749 in California → Every provider in Woodland → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Gabriela GarciaWoodland, CA 956951417361916
- Rebecca LeosWoodland, CA 956951861514838
- Aaron Miguel, P.T.Woodland, CA 956951609062397
- Pamela Moore, RAD INTERNWoodland, CA 956951972627990
- Marie Wells, COMPUTER CERTIFICATEWoodland, CA 956951215059282
- Candace Mack, OTR/LWinters, CA 956941114204849
- Paul FedorenkoWest Sacramento, CA 956911538407903
- Elena Guslikov, NPWest Sacramento, CA 956911114371283
Common questions
What is Carolyn Rhene Merkouris, MD's NPI number?
Carolyn Rhene Merkouris, MD's National Provider Identifier (NPI) is 1174503395, issued on Jan 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Carolyn Rhene Merkouris, MD located?
The NPPES record lists a practice address at 1321 Cottonwood St FL 3, Woodland, CA, 95695. Phone: (530) 668-2600. Providers update this record themselves, so call before visiting.
How can I verify Carolyn Rhene Merkouris, MD's license?
NPPES lists California license number G71953, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Carolyn Rhene Merkouris, MD prescribe under Medicare Part D?
In 2024, Carolyn Rhene Merkouris, MD had 102 Medicare Part D claims for 36 beneficiaries; the average among specialist prescribers was 1,380. 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.