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Internal Medicine

Patricia L. Marcuson, MD

Works at hospitals in Richmond, VA · Williamsburg, VA · Newport News, VA … · Virginia

Summary

Dr. Patricia L. Marcuson, MD is an internal medicine doctor at 132 Professional Cir, Williamsburg, VA 23185. Phone: (757) 232-8764. Accepts Medicare assignment. In 2024, Patricia L. Marcuson had 380 Original Medicare patients and 7,703 services. NPI 1609841485. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Patricia L. Marcuson, 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 Patricia L. Marcuson accept Medicare assignment?
Yes. Medicare's clinician data says Patricia L. Marcuson 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 Patricia L. Marcuson see?
In 2024, CMS data shows 380 Original Medicare patients and 7,703 services for Patricia L. Marcuson. This counts Original Medicare only and measures volume, not quality.
What is Patricia L. Marcuson's NPI number?
1609841485. 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 Patricia L. Marcuson, 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 patients380
Services billed to Medicare7,703
Different services or procedures74
Participating Medicare providerYes
Average age of these patients78

Most frequent services

  1. Injection, methylprednisolone acetate, 1 mg (J1010)1,322 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)703 services
  3. Insertion of needle into vein for collection of blood sample (36415)621 services
  4. Blood test, comprehensive group of blood chemicals (80053)554 services
  5. Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)448 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 blood pressure75%
  • High cholesterol75%
  • Arthritis55%
  • Osteoporosis34%
  • Diabetes20%
  • Depression18%

Hospitals where Patricia L. Marcuson works

Medicare's Facility Affiliation Data lists Patricia L. Marcuson at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Patricia L. Marcuson is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Patricia L. Marcuson as a member of this group (CMS data updated October 2, 2026).

  • Tidewater Physicians Multispecialty Group, PC261 clinicians in the group

Specialties

Find other Internal Medicine doctors in Virginia →

Other internal medicine doctors in Williamsburg

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

All internal medicine doctors in Williamsburg →

Other clinicians in Tidewater Physicians Multispecialty Group, PC

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

Clinician information

CredentialMD
Medical schoolNew York Medical College
Graduation year1991 (35 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1609841485
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians