Charlotte Carlson, M.D.
NPI 1134446875 · Geriatric Medicine (Internal Medicine) Physician · Santa Rosa, CA
Enrolled with Medicare as Practitioner - Geriatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charlotte Carlson, M.D. is a Geriatric Medicine (Internal Medicine) Physician provider in Santa Rosa, CA (NPI 1134446875).
Provider details
- NPI number
- 1134446875
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 1009320 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,117 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 348 | $194 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 290 | $130 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 138 | $139 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 72 | $90 |
| Administration of Influenza Virus VaccineG0008 | 57 | $35 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 55 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 94 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 212 | 64 |
| Escitalopram Oxalate | 197 | 56 |
| Gabapentin | 191 | 54 |
| Atorvastatin Calcium | 169 | 62 |
| Amlodipine Besylate | 146 | 44 |
| Trazodone Hcl | 146 | 36 |
| Losartan Potassium |
Practice location
Mailing address
Additional practice locations (2)
- 4700 Hoen AveSanta Rosa, CA 95405-7824Phone: (707) 308-2815Fax: (707) 573-5439
- 131 Stony Cir Ste 1600Santa Rosa, CA 95401-9520Phone: (707) 308-2815Fax: (707) 573-5439
Registry dates
- Enumerated
- 2010-04-20
- Last updated
- 2020-01-29
- Certified
- 2020-01-29
Frequently asked questions
- What is Charlotte Carlson's NPI number?
- Charlotte Carlson's National Provider Identifier (NPI) is 1134446875, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charlotte Carlson's specialty?
- Charlotte Carlson is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Charlotte Carlson located?
- Charlotte Carlson's practice location on file with NPPES is 2455 Summerfield Rd, Santa Rosa, CA 95405-7815.
- What is Charlotte Carlson's phone number?
- The practice phone number listed in the NPPES registry for Charlotte Carlson is (707) 308-2815.
- Does Charlotte Carlson accept Medicare?
- Charlotte Carlson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charlotte Carlson's NPI active?
- Yes — Charlotte Carlson's NPI (1134446875) is active in the NPPES registry as of the last update on 2020-01-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.