Vernissia Tam, MD
Colon & Rectal Surgery Physician · Frederick, MD
Vernissia Tam, MD is a colon & rectal surgery physician with a practice address in Frederick, Maryland, and NPI 1528344116, issued on Oct 26, 2011. Check the license (Maryland D0092081, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Vernissia Tam
- Credential
- MD
- Primary taxonomy
- Colon & Rectal Surgery Physician 208C00000X
- License number
- D0092081 MD
Self-reported in NPPES; status is on the state search - Practice location
- 194 Thomas Johnson Dr, Frederick, MD 21702
- Phone
- (240) 575-2526
- Enumerated
- Oct 26, 2011
- Record last updated
- Apr 7, 2022
- Fax
- (240) 566-7868
- Medicare enrollment
- Enrolled (PECOS I20211006000725); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest colon & rectal surgery physician records → All 32 in Maryland → Look up another NPI →
Also registered at 194 Thomas Johnson Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kristin Adelmeyer, CRNPFamily Nurse Practitioner1477063014
- Elizabeth Arnone, CRNPNurse Practitioner1316041494
- Abby BelayFamily Nurse Practitioner1164103701
- Amanda Bliss, PHYSICIAN ASSISTANTMedical Physician Assistant1972809044
- Krista Boynton, MCD CCC SLPSpeech-Language Pathologist1811347271
- Lauren Cox, PAPhysician Assistant1871543132
Verify Vernissia Tam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0092081Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average colon & rectal surgery physician in 2024
89 Medicare Part D claims for 31 beneficiaries, against an average of 192 among the 1,836 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 47 claims were for opioids.
Most prescribed
- Tramadol Hcl25 claims
- Gabapentin23 claims
- Oxycodone Hcl22 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): 80.3 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: $295.37
10 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 1,524 providers of this specialty with any payment received $3,468.16 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
- Frederick Health Medical Group LLCMount Airy, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Vernissia Tam among 32 colon & rectal surgery physician records in Maryland
Vernissia Tam, MD is one of 32 colon & rectal surgery physician records with a practice address in Maryland. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 72% of them.
- NPI issued2011 · 72% of these records are older, 22% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2013 · median 2004 among the 23 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 208C00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Colon & Rectal Surgery Physician providers in Maryland
There are 32 colon & rectal surgery physician records in Maryland.
All 32 in Maryland → Every provider in Frederick → Colon & Rectal Surgery Physician nationwide →
The 8 colon & rectal surgery physician records with the nearest ZIP codes
- Lynda Dougherty, M.D.Oakland, MD 215501376534149
- Steven Proshan, MDAnnapolis, MD 214011487754933
- Chady Atallah, M.D.Baltimore, MD 212871558637025
- Kathryn Chu, M.D.Baltimore, MD 212871184770315
- Bashar Safar, MDBaltimore, MD 212871932386422
- Philip Ferris, M.D.Baltimore, MD 212371154464410
- Irina Bernescu, MDBaltimore, MD 212291174850952
- Joann Warrick, M.D.Baltimore, MD 212241922254002
Common questions
What is Vernissia Tam, MD's NPI number?
Vernissia Tam, MD's National Provider Identifier (NPI) is 1528344116, issued on Oct 26, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Vernissia Tam, MD located?
The NPPES record lists a practice address at 194 Thomas Johnson Dr, Frederick, MD, 21702. Phone: (240) 575-2526. Providers update this record themselves, so call before visiting.
How can I verify Vernissia Tam, MD's license?
NPPES lists Maryland license number D0092081, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Vernissia Tam, MD prescribe under Medicare Part D?
In 2024, Vernissia Tam, MD had 89 Medicare Part D claims for 31 beneficiaries; the average among colon & rectal surgery physician prescribers was 192. Part D covers Medicare prescriptions only.
What is Vernissia Tam, MD's MIPS final score?
The 2023 MIPS final score is 80.3 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.