Mark M. Theiss, M.D.
Sports Medicine (Orthopaedic Surgery) Physician · Falls Church, VA
Mark M. Theiss, M.D. is a sports medicine (orthopaedic surgery) physician with a practice address in Falls Church, Virginia, and NPI 1669534350, issued on Dec 16, 2006. Check the license (Virginia 0101036798, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- Mark M. Theiss
- Credential
- M.D.
- Primary taxonomy
- Sports Medicine (Orthopaedic Surgery) Physician 207XX0005X
- License number
- 0101036798 VA
Self-reported in NPPES; status is on the state search - Practice location
- 3300 Gallows RD, Falls Church, VA 22042
- Phone
- (703) 776-4001
- Enumerated
- Dec 16, 2006
- Record last updated
- Jan 29, 2022
- Fax
- (703) 776-7113
- Medicaid ID
- 006499317 VA
- Medicare enrollment
- Enrolled (PECOS I20140617002262); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 1975
- Entity
- Type 1 · individual
8 nearest sports medicine (orthopaedic surgery) physician records → All 105 in Virginia → Look up another NPI →
Also registered at 3300 Gallows RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ahmed Sherif Abdel Meguid, MDPsychiatry Physician1700956307
- Alaa AbdelghaniPediatrics Physician1225523228
- Sami Abdul Jawad, M.D.Critical Care Medicine (Internal Medicine) Physician1487930905
- Ahmad Abdul-Aziz, M.D.Critical Care Medicine (Internal Medicine) Physician1285045518
- Sarah Abduljabbar, MDSurgery Physician1598659559
- Nuha Abdurahman, D.OInternal Medicine Physician1497155527
Verify Mark M. Theiss in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0101036798Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% more Medicare Part D claims than the average sports medicine (orthopaedic surgery) physician in 2024
384 Medicare Part D claims for 118 beneficiaries, against an average of 288 among the 2,562 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 151 claims were for opioids.
Most prescribed
- Oxycodone Hcl96 claims
- Eliquis55 claims
- Amoxicillin33 claims
- Diclofenac Sodium33 claims
- Hydromorphone Hcl16 claims
- Tramadol Hcl14 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 81.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Inova Health Care ServicesAnnandale, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark M. Theiss among 105 sports medicine (orthopaedic surgery) physician records in Virginia
Mark M. Theiss, M.D. is one of 105 sports medicine (orthopaedic surgery) physician records with a practice address in Virginia. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 46% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1975 · median 2001 among the 81 with a school on file
- Record last updated2022 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XX0005X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Sports Medicine (Orthopaedic Surgery) Physician providers in Virginia
There are 105 sports medicine (orthopaedic surgery) physician records in Virginia.
All 105 in Virginia → Every provider in Falls Church → Sports Medicine (Orthopaedic Surgery) Physician nationwide →
The 8 sports medicine (orthopaedic surgery) physician records with the nearest ZIP codes
- Robert Najarian, M.D.Falls Church, VA 220421033375613
- Michael Fox, MDFairfax, VA 220331063972446
- Ryan Miyamoto, M.D.Fairfax, VA 220331497923288
- Jomar AryeeFairfax, VA 220311487282190
- Brandon Bryant, M.D.Fairfax, VA 220311174554398
- Courtney Quinn, M.D.Fairfax, VA 220311609288612
- Robin West, MDFairfax, VA 220311477529543
- Christian Cruz, MDFort Belvoir, VA 220601649770348
Common questions
What is Mark M. Theiss, M.D.'s NPI number?
Mark M. Theiss, M.D.'s National Provider Identifier (NPI) is 1669534350, issued on Dec 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark M. Theiss, M.D. located?
The NPPES record lists a practice address at 3300 Gallows RD, Falls Church, VA, 22042. Phone: (703) 776-4001. Providers update this record themselves, so call before visiting.
How can I verify Mark M. Theiss, M.D.'s license?
NPPES lists Virginia license number 0101036798, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark M. Theiss, M.D. prescribe under Medicare Part D?
In 2024, Mark M. Theiss, M.D. had 384 Medicare Part D claims for 118 beneficiaries; the average among sports medicine (orthopaedic surgery) physician prescribers was 288. Part D covers Medicare prescriptions only.
What is Mark M. Theiss, M.D.'s MIPS final score?
The 2023 MIPS final score is 81.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.