Mark D. Carlson, MD
Internal Medicine Physician · Cedar Park, TX
Mark D. Carlson, MD is an internal medicine physician with a practice address in Cedar Park, Texas, and NPI 1023008398, issued on Oct 26, 2005. Check the license (Texas Q2258, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark D. Carlson
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- Q2258 TX
21230 NE
Self-reported in NPPES; status is on the state search - Practice location
- 1905 S Lakeline Blvd Ste 4, Cedar Park, TX 78613
- Phone
- (512) 553-1921
- Enumerated
- Oct 26, 2005
- Record last updated
- Apr 16, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicaid IDs
- 200269020A KS
91186278513 NE - Medicare enrollment
- Enrolled (PECOS I20170103000388); may accept Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 1991
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 1905 S Lakeline Blvd Ste 4
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mario Cendan, NPGerontology Nurse Practitioner1124512082
- Loveleen Swami, CMS RN AGACNP BCAdult Health Nurse Practitioner1255973558
Verify Mark D. Carlson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license Q2258Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,174 Medicare Part D claims for 49 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 56 claims were for opioids.
Most prescribed
- Furosemide77 claims
- Levothyroxine Sodium71 claims
- Donepezil Hcl53 claims
- Atorvastatin Calcium49 claims
- Amlodipine Besylate47 claims
- Potassium Chloride46 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.
Industry payments in 2024: $97.33
2 payments; by number, the most common kind was food and beverage; the largest payer was Eisai Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- BE Well MD PLLCRound Rock, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark D. Carlson among 9,175 internal medicine physician records in Texas
Mark D. Carlson, MD is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1991 · median 2004 among the 6,088 with a school on file
- Record last updated2019 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
32 internal medicine physician records list a practice address in Cedar Park
They are 32 of the 1,650 NPPES records with a practice address in Cedar Park, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Cedar Park → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Nikhil Agarwal, M.D.Cedar Park, TX 786131124173513
- Hanzy Bustamante, MDCedar Park, TX 786131508828641
- Susan Khan, MDCedar Park, TX 786131780764894
- Melissa Miller, MDCedar Park, TX 786131659312866
- Sabiha Mondal, M.DCedar Park, TX 786131578677829
- Aparna Mukkamala, MDCedar Park, TX 786131164643953
- Manish Naik, MDCedar Park, TX 786131184630436
- Mohinder Pegany, M.D.Cedar Park, TX 786131992798987
Common questions
What is Mark D. Carlson, MD's NPI number?
Mark D. Carlson, MD's National Provider Identifier (NPI) is 1023008398, issued on Oct 26, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark D. Carlson, MD located?
The NPPES record lists a practice address at 1905 S Lakeline Blvd Ste 4, Cedar Park, TX, 78613. Phone: (512) 553-1921. Providers update this record themselves, so call before visiting.
How can I verify Mark D. Carlson, MD's license?
NPPES lists Texas license number Q2258, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark D. Carlson, MD prescribe under Medicare Part D?
In 2024, Mark D. Carlson, MD had 1,174 Medicare Part D claims for 49 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.
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.