Caitlin Marie McCarthy, M.D.
Internal Medicine Physician · Santa Rosa, CA
Caitlin Marie McCarthy, M.D. is an internal medicine physician with a practice address in Santa Rosa, California, and NPI 1083980304, issued on Mar 30, 2012. Check the license (California A127218, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Caitlin Marie McCarthy
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A127218 CA
Self-reported in NPPES; status is on the state search - Practice location
- 401 Bicentennial Way, Santa Rosa, CA 95403
- Phone
- (707) 393-4000
- Enumerated
- Mar 30, 2012
- Record last updated
- Dec 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20151029002220); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 401 Bicentennial Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anna Ackerman, RNRegistered Nurse1376409409
- Patricia AdamsPhysical Therapist1124971825
- Hugo Aguilar, PHARMDPharmacist1992389134
- Heather Aiello, OTR/LOccupational Therapist1851155022
- Sandra Akrawi, REGISTERED DIETITIANRegistered Dietitian1790821031
- Miguel Alcala, LCSWClinical Social Worker1629857891
Verify Caitlin Marie McCarthy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A127218Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average internal medicine physician in 2024
373 Medicare Part D claims for 139 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 14 claims were for opioids.
Most prescribed
- Cefpodoxime Proxetil27 claims
- Atorvastatin Calcium21 claims
- Furosemide18 claims
- Tamsulosin Hcl13 claims
- Potassium Chloride12 claims
- Veo Insulin Syringe12 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
- Permanente Medical Group IncSanta Rosa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Caitlin Marie McCarthy among 17,696 internal medicine physician records in California
Caitlin Marie McCarthy, M.D. is one of 17,696 internal medicine 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 2012, is newer than 68% of them.
- NPI issued2012 · 68% of these records are older, 29% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2012 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 61% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
98 internal medicine physician records list a practice address in Santa Rosa
They are 98 of the 6,884 NPPES records with a practice address in Santa Rosa, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Santa Rosa → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Harry Carr, M.D.Santa Rosa, CA 954031770694044
- William Carroll, M.D.Santa Rosa, CA 954031922005891
- Lawrence Cooper, M.D.Santa Rosa, CA 954031801895602
- Zhen Zhou Feng, M.D.Santa Rosa, CA 954031871600031
- Timothy Gieseke, M.D.Santa Rosa, CA 954031992703706
- Archana Goyal, M.D.Santa Rosa, CA 954031811084817
- Parul Kohli, M.D.Santa Rosa, CA 954031023098738
- Maya Land, MDSanta Rosa, CA 954031619958154
Common questions
What is Caitlin Marie McCarthy, M.D.'s NPI number?
Caitlin Marie McCarthy, M.D.'s National Provider Identifier (NPI) is 1083980304, issued on Mar 30, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Caitlin Marie McCarthy, M.D. located?
The NPPES record lists a practice address at 401 Bicentennial Way, Santa Rosa, CA, 95403. Phone: (707) 393-4000. Providers update this record themselves, so call before visiting.
How can I verify Caitlin Marie McCarthy, M.D.'s license?
NPPES lists California license number A127218, 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 Caitlin Marie McCarthy, M.D. prescribe under Medicare Part D?
In 2024, Caitlin Marie McCarthy, M.D. had 373 Medicare Part D claims for 139 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.