NPPES file of Aug 9, 2026

Charlotte Mary Carlson, M.D.

Geriatric Medicine (Internal Medicine) Physician · Santa Rosa, CA

Charlotte Mary Carlson, M.D. is a geriatric medicine (internal medicine) physician with a practice address in Santa Rosa, California, and NPI 1134446875, issued on Apr 20, 2010. Check the license (California 1009320, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1134446875
Name
Charlotte Mary Carlson
Credential
M.D.
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License number
1009320 CA
Self-reported in NPPES; status is on the state search
Practice location
2455 Summerfield RD, Santa Rosa, CA 95405
Phone
(707) 308-2815
Enumerated
Apr 20, 2010
Record last updated
Jan 29, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(707) 573-5439
Medicare enrollment
Enrolled (PECOS I20200205002906); accepts Medicare assignment
Medical or professional school
University Of California, San Francisco School Of Medicine, 2010
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest geriatric medicine (internal medicine) physician records → All 532 in California → Look up another NPI →

Also registered at 2455 Summerfield RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Tabitha DeeringSocial Worker1467299503
  2. Gary Furness, MDFamily Medicine Physician1144281635
  3. Jessica GalindoClinical Social Worker1578812426
  4. Steven Mitnick, MDAnatomic Pathology & Clinical Pathology Physician1548285950
  5. Gary Nichols, M.D.Internal Medicine Physician1033201587
  6. Christine Silano, AGNP-BCNurse Practitioner1538688858

Verify Charlotte Mary Carlson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 1009320    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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10% more Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024

4,688 Medicare Part D claims for 443 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 55 claims were for opioids.

  1. Charlotte Carlson4,688
  2. Specialty average4,246

Most prescribed

  1. Levothyroxine Sodium212 claims
  2. Escitalopram Oxalate197 claims
  3. Gabapentin191 claims
  4. Atorvastatin Calcium169 claims
  5. Amlodipine Besylate146 claims
  6. Trazodone Hcl146 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

  1. Sutter Bay Medical FoundationSanta Rosa, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Charlotte Mary Carlson among 532 geriatric medicine (internal medicine) physician records in California

Charlotte Mary Carlson, M.D. is one of 532 geriatric medicine (internal medicine) physician records with a practice address in California. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 71% of them.

  • NPI issued2010 · 71% of these records are older, 26% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 51% of these records are
  • Graduated2010 · median 1999 among the 271 with a school on file
  • Record last updated2020 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Geriatric Medicine (Internal Medicine) Physician providers in California

There are 532 geriatric medicine (internal medicine) physician records in California.

All 532 in California → Every provider in Santa Rosa → Geriatric Medicine (Internal Medicine) Physician nationwide →

The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes

  1. Stephen Chavin, M.D.Santa Rosa, CA 954051225323173
  2. Waseem Ahmed, MDSanta Rosa, CA 954031386803559
  3. Wynnelena Canio, M.D.Santa Rosa, CA 954031154443117
  4. Seema Rao, MD.Santa Rosa, CA 954031275714495
  5. David Greene, MDSanta Rosa, CA 954091104802594
  6. Kateri Murray, M.D.Santa Rosa, CA 954011477583029
  7. Rachel Mayorga, MDHealdsburg, CA 954481124078365
  8. Garfield Pickell, M. D.Modesto, CA 953561154428621

Common questions

What is Charlotte Mary Carlson, M.D.'s NPI number?

Charlotte Mary Carlson, M.D.'s National Provider Identifier (NPI) is 1134446875, issued on Apr 20, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Charlotte Mary Carlson, M.D. located?

The NPPES record lists a practice address at 2455 Summerfield RD, Santa Rosa, CA, 95405. Phone: (707) 308-2815. Providers update this record themselves, so call before visiting.

How can I verify Charlotte Mary Carlson, M.D.'s license?

NPPES lists California license number 1009320, 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 Charlotte Mary Carlson, M.D. prescribe under Medicare Part D?

In 2024, Charlotte Mary Carlson, M.D. had 4,688 Medicare Part D claims for 443 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.