Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Family Practice

Onyebuchi B. Tasie, MD

Sees patients in Williamsburg, VA · Newport News, VA · Virginia

Summary

Dr. Onyebuchi B. Tasie, MD is a family doctor at 120 Monticello Ave, Williamsburg, VA 23185. Phone: (757) 564-3627. Accepts Medicare assignment. In 2024, Onyebuchi B. Tasie had 145 Original Medicare patients and 264 services. NPI 1790857530. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Family doctor (Medicare lists Family Practice)
  • Address: 120 Monticello Ave, Williamsburg, VA 23185 · Directions (1 more location)
  • Phone: (757) 564‑3627
  • Medicare: Accepts Medicare assignment
  • Group practice: Michumi PLLC
  • Medical school: Howard University College Of Medicine · graduated 1995 (31 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Onyebuchi B. Tasie, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Onyebuchi B. Tasie accept Medicare assignment?
Yes. Medicare's clinician data says Onyebuchi B. Tasie accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Onyebuchi B. Tasie see?
In 2024, CMS data shows 145 Original Medicare patients and 264 services for Onyebuchi B. Tasie. This counts Original Medicare only and measures volume, not quality.
What is Onyebuchi B. Tasie's NPI number?
1790857530. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Onyebuchi B. Tasie, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients145
Services billed to Medicare264
Different services or procedures27
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)89 services
  2. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)36 services
  3. Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) (87811)35 services
  4. Detection test by immunoassay with direct visual observation for influenza virus (87804)34 services
  5. Automated urinalysis test (81003)17 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol70%
  • High blood pressure63%
  • Arthritis35%
  • Depression21%
  • Anxiety21%
  • Diabetes20%

Practice locations

Addresses where Onyebuchi B. Tasie is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Onyebuchi B. Tasie as a member of this group (CMS data updated October 2, 2026).

  • Michumi PLLC40 clinicians in the group

Specialties

Find other Family Practice doctors in Virginia →

Other family doctors in Williamsburg

Clinicians with the same Medicare primary specialty in Williamsburg, VA — not a recommendation.

All family doctors in Williamsburg →

Other clinicians in Michumi PLLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolHoward University College Of Medicine
Graduation year1995 (31 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1790857530
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians