DR. VERNISSIA TAM MD
NPI 1528344116
Colon & Rectal Surgery in Frederick, MD
About Dr. Vernissia Tam Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. VERNISSIA TAM MD (NPI 1528344116) is an individual colon & rectal surgery provider in Frederick, Maryland, licensed in Maryland (D0092081) and active in the NPI registry since October 2011. She is enrolled in Medicare PECOS, is affiliated with Frederick Health Hospital, and maintains a secondary practice location in Baltimore.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Vernissia Tam Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Vernissia Tam reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Frederick, MD 21702
- Reassigned Medicare billing, Maryland enrollment
- 245 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 7
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Frederick Health Hospital
Acute Care Hospitals · Frederick, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21702 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FREDERICK, MD 21702
FREDERICK, MD 21702
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Vernissia Tam's NPI number?
The NPI number for Vernissia Tam is 1528344116. It was assigned to this individual provider in the NPPES registry on October 26, 2011.
Where is Vernissia Tam located?
Vernissia Tam practices at 194 Thomas Johnson Dr, Frederick, MD 21702. The listed phone number is (240) 575-2526.
What is Vernissia Tam's specialty?
The primary specialty registered for this NPI is Colon & Rectal Surgery with taxonomy code 208C00000X.
Is Vernissia Tam enrolled in Medicare?
Yes. Vernissia Tam is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Vernissia Tam's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Vernissia Tam reassigns Medicare benefits to Frederick Health Medical Group LLC (Frederick, MD). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Vernissia Tam's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Vernissia Tam affiliated with any hospitals?
According to CMS data, Vernissia Tam is affiliated with Frederick Health Hospital.
When was this NPI record last updated?
The NPPES record for Vernissia Tam was last updated on April 7, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Vernissia Tam, MD · NPI 1528344116
Colon & Rectal Surgery physician in Frederick, Maryland. Individual provider, active in the CMS NPPES registry since October 26, 2011.
## Identity
- **NPI:** 1528344116 (Entity type: Individual)
- **Enumerated:** October 26, 2011
- **Primary specialty:** Colon & Rectal Surgery · taxonomy 208C00000X
- **State license:** D0092081 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 194 THOMAS JOHNSON DR, Frederick, MD 21702-4679
- **Phone:** (240) 575-2526 · **Fax:** (240) 566-7868
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Frederick Health Medical Group LLC (NPI 1205590155, Frederick, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2013
## Record status
- **NPPES last updated:** April 7, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1528344116) · Data from the CMS NPPES public registry.