Mary C. Tisch, PA
Physician Assistant · Fairfax, VA
Mary C. Tisch, PA is a physician assistant with a practice address in Fairfax, Virginia, and NPI 1558566455, issued on Jun 19, 2007. Check the license (Virginia 0110003594, as entered in NPPES) with the Virginia board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary C. Tisch
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 0110003594 VA
Self-reported in NPPES; status is on the state search - Practice location
- 3580 Joseph Siewick Dr Ste 305, Fairfax, VA 22033
- Phone
- (703) 648-3266
- Enumerated
- Jun 19, 2007
- Record last updated
- Aug 27, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (703) 648-3264
- Medicaid ID
- 1558566445 VA
- Medicare enrollment
- Enrolled (PECOS I20111228000681); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,408 in Virginia → Look up another NPI →
Also registered at 3580 Joseph Siewick Dr Ste 305
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary C. Tisch in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Virginia board licenses this profession
Search for license 0110003594Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
1% fewer Medicare Part D claims than the average physician assistant in 2024
819 Medicare Part D claims for 188 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Atorvastatin Calcium84 claims
- Amlodipine Besylate79 claims
- Eliquis72 claims
- Metoprolol Succinate66 claims
- Losartan Potassium34 claims
- Lisinopril33 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).
Industry payments in 2024: $455.25
15 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 64,719 providers of this specialty with any payment received $841.65 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.
Mary C. Tisch among 4,408 physician assistant records in Virginia
Mary C. Tisch, PA is one of 4,408 physician assistant records with a practice address in Virginia. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 14% of them.
- NPI issued2007 · 14% of these records are older, 82% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2007 · median 2018 among the 2,885 with a school on file
- Record last updated2021 · 33% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
151 physician assistant records list a practice address in Fairfax
They are 151 of the 6,584 NPPES records with a practice address in Fairfax, and 4,408 physician assistant records in Virginia.
All 4,408 in Virginia → Every provider in Fairfax → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Kara Cochran, PAFairfax, VA 220331265609788
- Julie Crocker, PAFairfax, VA 220331346235843
- Andrew Elkins, PA-CFairfax, VA 220331962749374
- Jamilyn Fano, PA-CFairfax, VA 220331699921460
- Ryan Fitzmorris, PA-CFairfax, VA 220331982621157
- Kevin Fuller, PA-CFairfax, VA 220331417119652
- Francis Gyamfi, PACFairfax, VA 220331710028956
- Kristen Malone, PAFairfax, VA 220331114116589
Common questions
What is Mary C. Tisch, PA's NPI number?
Mary C. Tisch, PA's National Provider Identifier (NPI) is 1558566455, issued on Jun 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mary C. Tisch, PA located?
The NPPES record lists a practice address at 3580 Joseph Siewick Dr Ste 305, Fairfax, VA, 22033. Phone: (703) 648-3266. Providers update this record themselves, so call before visiting.
How can I verify Mary C. Tisch, PA's license?
NPPES lists Virginia license number 0110003594, as entered by the provider. Search the Virginia board that licenses this profession; the NPPES record confirms identity only.
How much does Mary C. Tisch, PA prescribe under Medicare Part D?
In 2024, Mary C. Tisch, PA had 819 Medicare Part D claims for 188 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Mary C. Tisch, PA'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.