Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

VIVIAN WANGMEI LAM MD
NPI 1952926073
Family Medicine in Fairfax, VA

Active since June 15, 2020PECOS EnrolledAccepts Medicare Assignment
92.48/100
CMS Quality Rating
3650 JOSEPH SIEWICK DR STE 400, FAIRFAX, VA 22033(703) 391-2020 Get Directions Write a Review

NPPES record last updated: June 22, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Mar 3, 2025, Jun 15, 2020 (2 updates tracked since 2020).

About Vivian Wangmei Lam Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

VIVIAN WANGMEI LAM MD (NPI 1952926073) is an individual family medicine provider in Fairfax, Virginia, licensed in Pennsylvania (MD482818) and active in the NPI registry since June 2020. She is enrolled in Medicare PECOS, is affiliated with Wellspan York Hospital, and is a graduate of Virginia Commonwealth University, School Of Medicine (2020).

NPPES Registry Identity

NPI1952926073
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameVIVIAN WANGMEI LAMCredential: MD
Location Address3650 JOSEPH SIEWICK DR STE 400Fairfax, VA 22033-1715
Mailing Address3650 Joseph Siewick Dr Ste 400Fairfax, VA 22033-1715 · (703) 391-2020
Sole ProprietorYes
Medical School CMSVirginia Commonwealth University, School Of MedicineGraduated 2020
Enumeration DateJune 15, 2020
Last NPPES UpdateJune 22, 20262 updates tracked since enumeration
NPPES CertifiedJune 22, 2026
NPI 1952926073 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License Licensed in PA · MD482818
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
3650 JOSEPH SIEWICK DR STE 400, Fairfax, VA 22033

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Vivian Wangmei Lam 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.

PECOS PAC ID4284058405
PECOS Enrollment IDI20231017002155
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 2

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
103 services100 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
59 services57 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Wellspan York Hospital

Acute Care Hospitals · York, PA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390046
Location1001 South George StreetYork, PA 17403 · York County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22033 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$100.31 typical visit price
range $65.18 – $194.86
Typical copayment $25.07 (range $16.29 – $48.71)
Most-billed visit code 99203
Established Patient
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

92.48/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality87.48
Promoting Interoperability92
Improvement Activities40

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.

Family Medicine
3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
Family Medicine
3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
Family Medicine
3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
Family Medicine
3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
Family Medicine
3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
Family Medicine
3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
Physical Therapist
3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
Family Medicine
3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033

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 Vivian Lam's NPI number?

The NPI number for Vivian Lam is 1952926073. It was assigned to this individual provider in the NPPES registry on June 15, 2020.

Where is Vivian Lam located?

Vivian Lam practices at 3650 Joseph Siewick Dr Ste 400, Fairfax, VA 22033. The listed phone number is (703) 391-2020.

What is Vivian Lam's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Vivian Lam enrolled in Medicare?

Yes. Vivian Lam 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.

Is Vivian Lam affiliated with any hospitals?

According to CMS data, Vivian Lam is affiliated with Wellspan York Hospital.

When was this NPI record last updated?

The NPPES record for Vivian Lam was last updated on June 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 58 days 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.