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Physician Assistant

Carlye B. Seymour, PA

Works at hospitals in Germantown, MD · Maryland

Summary

Carlye B. Seymour, PA is a physician assistant at 1194 Dutchmans Creek Dr, Brunswick, MD 21716. Phone: (240) 215-6310. Accepts Medicare assignment. In 2024, Carlye B. Seymour had 211 Original Medicare patients and 607 services. NPI 1811530207. 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: Physician assistant
  • Address: 1194 Dutchmans Creek Dr, Brunswick, MD 21716 · Directions (6 more locations)
  • Phone: (240) 215‑6310
  • Medicare: Accepts Medicare assignment
  • Hospital: Holy Cross Germantown Hospital
  • Group practice: Centers for Advanced Orthopaedics LLC (+2 more)
  • School: graduated 2020
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Carlye B. Seymour, 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 Carlye B. Seymour accept Medicare assignment?
Yes. Medicare's clinician data says Carlye B. Seymour 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 Carlye B. Seymour see?
In 2024, CMS data shows 211 Original Medicare patients and 607 services for Carlye B. Seymour. This counts Original Medicare only and measures volume, not quality.
What is Carlye B. Seymour's NPI number?
1811530207. 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 Carlye B. Seymour, 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 patients211
Services billed to Medicare607
Different services or procedures46
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)218 services
  2. Insertion of cage or mesh device to spine bone and disc space during spine fusion (22853)51 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)44 services
  4. Fusion of spine in lower back with partial removal of spine bone and disc (22633)33 services
  5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)32 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%
  • Arthritis75%
  • Ischemic heart disease35%
  • Anxiety28%
  • Diabetes27%

Hospitals where Carlye B. Seymour works

Medicare's Facility Affiliation Data lists Carlye B. Seymour 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.

  • Holy Cross Germantown HospitalGermantown, MD · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 210065

Practice locations

Addresses where Carlye B. Seymour is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.

  • 1194 Dutchmans Creek DrBrunswick, MD 21716 (240) 215‑6310
  • 187 Thomas Johnson DrFrederick, MD 21702
  • 187 Thomas Johnson Dr, Suite 6Frederick, MD 21702
  • 19801 Observation DrGermantown, MD 20876 (301) 694‑8311
  • 19851 Observation Dr, Suite 450Germantown, MD 20876 (301) 977‑6777

Group practices

Medicare enrollment lists Carlye B. Seymour as a member of these groups (CMS data updated October 2, 2026).

  • Centers for Advanced Orthopaedics LLC604 clinicians in the group
  • Amber Hill Physical Therapy Inc334 clinicians in the group
  • Frederick Health Hospital Inc127 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, Maryland →

Other physician assistants in Brunswick

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

All physician assistants in Brunswick →

Other clinicians in Centers for Advanced Orthopaedics LLC

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

Clinician information

CredentialPA
Graduation year2020
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1811530207
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