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Obstetrics/Gynecology

Michael P. Vietz, MD

Works at hospitals in Baltimore, MD · Maryland

Summary

Dr. Michael P. Vietz, MD is an OB-GYN at 3449 Wilkens Ave, Suite 305, Baltimore, MD 21229. Phone: (410) 644-2582. Accepts Medicare assignment. In 2024, Michael P. Vietz had 177 Original Medicare patients and 359 services. NPI 1194859108. 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.

  • Specialty: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 3449 Wilkens Ave, Suite 305, Baltimore, MD 21229 · Directions
  • Phone: (410) 644‑2582
  • Medicare: Accepts Medicare assignment
  • Hospital: Saint Agnes Hospital
  • Group practice: Seton Medical Group Inc
  • Medical school: graduated 1984 (42 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Michael P. Vietz, 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 Michael P. Vietz accept Medicare assignment?
Yes. Medicare's clinician data says Michael P. Vietz 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 Michael P. Vietz see?
In 2024, CMS data shows 177 Original Medicare patients and 359 services for Michael P. Vietz. This counts Original Medicare only and measures volume, not quality.
What is Michael P. Vietz's NPI number?
1194859108. 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 Michael P. Vietz, 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 patients177
Services billed to Medicare359
Different services or procedures31
Participating Medicare providerYes
Average age of these patients70

Most frequent services

  1. Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)101 services
  2. Colorectal cancer screening; fecal occult blood test, immunoassay, 1-3 simultaneous (G0328)92 services
  3. Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)76 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)28 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 cholesterol75%
  • High blood pressure71%
  • Arthritis54%
  • Anxiety24%
  • Diabetes21%
  • Osteoporosis20%

Hospitals where Michael P. Vietz works

Medicare's Facility Affiliation Data lists Michael P. Vietz 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.

  • Saint Agnes HospitalBaltimore, MD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 210011

Practice locations

Addresses where Michael P. Vietz is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Michael P. Vietz as a member of this group (CMS data updated October 2, 2026).

  • Seton Medical Group Inc74 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Maryland →

Other OB-GYNs in Baltimore

Clinicians with the same Medicare primary specialty in Baltimore, MD — not a recommendation.

All OB-GYNs in Baltimore →

Other clinicians in Seton Medical Group Inc

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

Clinician information

CredentialMD
Graduation year1984 (42 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1194859108
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