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MICHAEL D. WILLIAMS M.D.
NPI 1386625424
Surgery - Trauma Surgery in Washington, DC

Active since November 07, 2005PECOS Enrolled
79.39/100
CMS Quality Rating
1200 PECAN ST SE, WASHINGTON, DC 20032(771) 444-6200 Get Directions Write a Review

NPPES record last updated: November 13, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Michael D. Williams M.d. NPPES

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

MICHAEL D. WILLIAMS M.D. (NPI 1386625424) is an individual trauma surgery provider in Washington, District Of Columbia, licensed in District Of Columbia (MD31693) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS and maintains a secondary practice location in Charlottesville.

NPPES Registry Identity

NPI1386625424
Entity TypeIndividualMale
Primary Taxonomy2086S0127X
Provider Legal NameMICHAEL D. WILLIAMSCredential: M.D.
Location Address1200 PECAN ST SEWashington, DC 20032-2652
Mailing AddressPo Box 9007Charlottesville, VA 22906-9007
Phone(771) 444-6200
Sole ProprietorNo
Enumeration DateNovember 7, 2005
Last NPPES UpdateNovember 13, 2025
NPPES CertifiedNovember 13, 2025
✔ NPI 1386625424 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtySurgery · Trauma SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0127X
License✔ Licensed in DC · MD31693
Definition
Trauma surgery is a recognized subspecialty of general surgery. Trauma surgeons are physicians who have completed a five-year general surgery residency and usually continue with a one to two year fellowship in trauma and/or surgical critical care, typically leading to additional board certification in surgical critical care. There is no trauma surgery board certification at this point. To obtain board certification in surgical critical care, a fellowship in surgical critical care or anesthesiology critical care must be completed during or after general surgery residency.
Also ListedSurgeryTaxonomy 208600000X · License MD 31693 (DC)
Also ListedSurgery · Surgical Critical CareTaxonomy 2086S0102X · License 0101232705 (VA), MD31693 (DC)
1200 PECAN ST SE, Washington, DC 20032
Open in Google Maps ↗

Secondary Practice Location 1

Location 14 Hospital DrCharlottesville, VA 22908-0001 · Phone (434) 982-1632 · Fax (434) 982-4344

Other Identifiers 1

Medicaid027353100DC

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Michael D. Williams M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignments

2

Medicare enrollment records show Michael Williams reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Virginia Hospital Center Physician Group, LLC
4.9 mi
Internal Medicine
2800 S SHIRLINGTON RD, SUITE 500
Arlington, VA 22206
  • Reassigned Medicare billing, District of Columbia enrollment
  • 436 clinicians in this Medicare group
NPI 1295176725 (703) 717-4245
University Of Virginia Physicians Group
100 mi
Neuromusculoskeletal Medicine, Sports Medicine
4105 LEWIS AND CLARK DR
Charlottesville, VA 22911
  • Reassigned Medicare billing, Virginia enrollment
  • 2,820 clinicians in this Medicare group
NPI 1033138250 (434) 295-1000

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 4

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
57 services43 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
36 services18 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
16 services15 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
15 services15 patients

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.

79.39/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality73.66
Promoting Interoperability100
Improvement Activities40
Cost57.65

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.

GREATER WASHINGTON ANESTHESIA NETWORK PLLC
Anesthesiology
1200 PECAN ST SE
WASHINGTON, DC 20032
District of Columbia (771) 444-6200
UHS EAST END SUB, LLC
Clinic/Center (End-Stage Renal Disease (ESRD) Treatment)
1200 PECAN ST SE
WASHINGTON, DC 20032
District of Columbia (771) 444-6200
ANNA R BELLETTIERE
Physician Assistant
1200 PECAN ST SE
WASHINGTON, DC 20032
District of Columbia (771) 444-6200
SARAH GANJI MD
Psychiatry & Neurology (Epilepsy)
1200 PECAN ST SE
WASHINGTON, DC 20032
District of Columbia (771) 444-6200
KATHRYN ANN HUGHES MD
Surgery
1200 PECAN ST SE
WASHINGTON, DC 20032
District of Columbia (771) 444-6200
ANNA WOODALL MD
Internal Medicine (Critical Care Medicine)
1200 PECAN ST SE
WASHINGTON, DC 20032
District of Columbia (771) 444-6200
JENNA ELIZ TAN DERIVERA CAA
Anesthesiologist Assistant
1200 PECAN ST SE
WASHINGTON, DC 20032
District of Columbia (202) 823-4220
BRENNA KELSEY LLOYD
Physician Assistant
1200 PECAN ST SE
WASHINGTON, DC 20032
District of Columbia (803) 931-6043

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 Michael Williams's NPI number?

The NPI number for Michael Williams is 1386625424. It was assigned to this individual provider in the NPPES registry on November 7, 2005.

Where is Michael Williams located?

Michael Williams practices at 1200 Pecan St SE, Washington, DC 20032. The listed phone number is (771) 444-6200.

What is Michael Williams's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Trauma Surgery, with taxonomy code 2086S0127X.

Is Michael Williams enrolled in Medicare?

Yes. Michael Williams is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Michael Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Williams reassigns Medicare benefits to 2 organizations: Virginia Hospital Center Physician Group, LLC (Arlington, VA) and University Of Virginia Physicians Group (Charlottesville, VA). Each 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 Michael Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Michael Williams was last updated on November 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.