Doctor profile · Federal record

Dr. Charlotte Carlson, M.D.

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

  • NPI 1134446875
  • Accepts Medicare
  • 16 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
2455 Summerfield RD
Santa Rosa, CA 954057815
(707) 308-2815
fax (707) 573-5439
Additional location
131 Stony Cir Ste 1600
Santa Rosa, CA 954019520
Additional location
4700 Hoen Ave
Santa Rosa, CA 954057824

Credentials & registration

NPPES · NUCC
NPI registered
April 2010 — 16 yrs on file
Profile last updated
January 29, 2020
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
207RG0300X — NUCC code
State license (1)
California #1009320

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1134446875. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,051
Distinct HCPCS
10
Medicare allowed
$151,383
HCPCS Description Services Patients Avg allowed
99215 Established patient office or other outpatient visit, 40-54 minutes 378 186 $196
99443 Telephone medical discussion with physician, 21-30 minutes 190 97 $127
99214 Established patient office or other outpatient visit, 30-39 minutes 119 79 $141
99442 Telephone medical discussion with physician, 11-20 minutes 72 52 $87
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 65 65 $144
G2212 Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or 53 50 $35
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage 51 51 $76
G0008 Administration of influenza virus vaccine 49 49 $34
99205 New patient office or other outpatient visit, 60-74 minutes 45 45 $240
99213 Established patient office or other outpatient visit, 20-29 minutes 16 14 $98

In context: peer comparison

Among 2 peers in this city , average services per provider: 148. This provider delivers 7.1× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,541
Patients
437
Total drug cost
$94,310
Drug Type Claims Patients Total cost
Levothyroxine Sodium Generic 172 43 $3,489
Atorvastatin Calcium Generic 148 45 $2,628
Escitalopram Oxalate Generic 147 37 $1,780
Gabapentin Generic 123 39 $2,204
Amlodipine Besylate Generic 121 39 $1,346
Duloxetine Hcl Generic 112 22 $5,120
Trazodone Hcl Generic 106 29 $1,298
Lisinopril Generic 102 36 $1,442
Losartan Potassium Generic 102 34 $1,909
Eliquis (Apixaban) Brand 89 17 $67,246

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Charlotte Carlson's medical specialty?
Dr. Charlotte Carlson practices Geriatric Medicine (Internal Medicine) Physician in Santa Rosa, CA.
Where does Dr. Charlotte Carlson practice?
Dr. Charlotte Carlson practices at 2455 Summerfield RD, Santa Rosa, CA 954057815. Office phone: 7073082815.
What is Dr. Charlotte Carlson's NPI?
Dr. Charlotte Carlson's National Provider Identifier (NPI) is 1134446875, issued by NPPES.
Does Dr. Charlotte Carlson accept Medicare assignment?
Yes. Dr. Charlotte Carlson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Charlotte Carlson commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Telephone medical discussion with physician (HCPCS 99443); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.