NPI age
20 years
Enumerated 2005-10-26
● Active
Type 1 · Individual
Mark D Carlson, MD
Carlson is 1 of 39 internal medicine providers in Cedar Park and 1 of 12343 in Texas.
Primary specialty
Internal Medicine
Plus 3 subspecialties
Licensed in
TX, NE
2 states
Status
Active
No deactivations on record
Last NPPES update
2019-04-16
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 12343 active internal medicine providers in Texas.
NPI age
20 years
↑ 3 yr above median (17 yr)
State licenses
2 states
Top 88% — 12% of peers are multi-state
Subspecialties
2
In the 33% of peers with subspecialties
NPI lifetime · 2005 → 2026
2005-10Enumerated in NPPES
2005
2026
Where they practice
Practice location
1905 S Lakeline Blvd Ste 4
Cedar Park, TX 78613
Mailing address
1905 S Lakeline Blvd Ste 4
Cedar Park, TX 786134660
Additional practice locations
1 secondary location on file with NPPES.
Location 2
201 S 68th Street Pl, Suite 200
Lincoln, NE 685102496
Specialties
-
Internal Medicine PrimaryA physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer,...
-
Family MedicineA family medicine physician with special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in...
-
Internal MedicineAn internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 (NE) | 02601 | BCBS |
| 05 (KS) | 200269020A | |
| 01 (NE) | 3600078 | UHC |
| 01 (NE) | 6452 | MIDLANDS CHOICE |
| 05 (NE) | 91186278513 |
Multi-state credentialing: Licensed in 2 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 2 other active providers share this practice address in NPPES.
Recently enumerated nearby: 1 new internal medicine provider has been added in Cedar Park in the last 180 days.
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Request a quote →How to verify this provider
- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.