John Carlson, MD
NPI 1659352680 · Geriatric Medicine (Internal Medicine) Physician · Georgetown, TX
John Carlson, MD is a Geriatric Medicine (Internal Medicine) Physician provider in Georgetown, TX (NPI 1659352680).
Provider details
- NPI number
- 1659352680
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 22442 (SC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-08
- Last updated
- 2022-01-18
- Certified
- 2022-01-18
Frequently asked questions
- What is John Carlson's NPI number?
- John Carlson's National Provider Identifier (NPI) is 1659352680, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Carlson's specialty?
- John Carlson is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is John Carlson located?
- John Carlson's practice location on file with NPPES is 4945 Williams Dr, Georgetown, TX 78633-2008.
- What is John Carlson's phone number?
- The practice phone number listed in the NPPES registry for John Carlson is (512) 819-0500.
- Is John Carlson's NPI active?
- Yes — John Carlson's NPI (1659352680) is active in the NPPES registry as of the last update on 2022-01-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.