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Obstetrics/Gynecology

Karen Y. Perkins, MD

Works at hospitals in Randallstown, MD · Baltimore, MD · Maryland

Summary

Dr. Karen Y. Perkins, MD is an OB-GYN at 5310 Old Court Rd, Suite 305, Randallstown, MD 21133. Phone: (410) 655-6900. Accepts Medicare assignment. In 2024, Karen Y. Perkins had 76 Original Medicare patients and 384 services. NPI 1063582179. 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 Karen Y. Perkins, 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 Karen Y. Perkins accept Medicare assignment?
Yes. Medicare's clinician data says Karen Y. Perkins 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 Karen Y. Perkins see?
In 2024, CMS data shows 76 Original Medicare patients and 384 services for Karen Y. Perkins. This counts Original Medicare only and measures volume, not quality.
What is Karen Y. Perkins's NPI number?
1063582179. 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 Karen Y. Perkins, 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 patients76
Services billed to Medicare384
Different services or procedures16
Participating Medicare providerYes
Average age of these patients70

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)177 services
  2. Colorectal cancer screening; fecal occult blood test, immunoassay, 1-3 simultaneous (G0328)51 services
  3. Urinalysis, manual test (81002)41 services
  4. Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)35 services
  5. Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)35 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%
  • Diabetes62%
  • Arthritis50%
  • Chronic kidney disease26%
  • Asthma20%

Hospitals where Karen Y. Perkins works

Medicare's Facility Affiliation Data lists Karen Y. Perkins 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.

  • Northwest Hospital CenterRandallstown, MD · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 210040
  • Sinai Hospital of BaltimoreBaltimore, MD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 210012

Practice locations

Addresses where Karen Y. Perkins is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Obstetrics/Gynecology doctors in Maryland →

Other OB-GYNs in Maryland

Clinicians with the same Medicare primary specialty in Maryland — not a recommendation.

All OB-GYNs in Maryland →

Clinician information

CredentialMD
Medical schoolDuke University School Of Medicine
Graduation year1996 (30 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1063582179
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