Quick answers
- Does Megan Ryan-Riffle accept Medicare assignment?
- Yes. Medicare's clinician data says Megan Ryan-Riffle 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 Megan Ryan-Riffle see?
- In 2024, CMS data shows 988 Original Medicare patients and 5,153 services for Megan Ryan-Riffle. This counts Original Medicare only and measures volume, not quality.
- What is Megan Ryan-Riffle's NPI number?
- 1356957534. 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 Megan Ryan-Riffle, 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 patients | 988 |
|---|---|
| Services billed to Medicare | 5,153 |
| Different services or procedures | 37 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Ultrasound measurement of bladder capacity after voiding (51798)510 services
- Automated urinalysis test (81003)470 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)455 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)443 services
- Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)275 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%
- Arthritis52%
- Ischemic heart disease43%
- Diabetes37%
- Depression31%
Hospitals where Megan Ryan-Riffle works
Medicare's Facility Affiliation Data lists Megan Ryan-Riffle 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.
- Frederick Health HospitalFrederick, MD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 210005
Practice locations
Addresses where Megan Ryan-Riffle is enrolled with Medicare (CMS data updated October 2, 2026).
- 21 Crossroads Dr, Suite 200Owings Mills, MD 21117 (410) 581‑1600
- 4011 Randolph RdSilver Spring, MD 20902 (410) 661‑4670
- 8901 Clement AveParkville, MD 21234 (410) 661‑4670
Group practices
Medicare enrollment lists Megan Ryan-Riffle as a member of these groups (CMS data updated October 2, 2026).
- Chesapeake Urology Associates LLC177 clinicians in the group
- Maryland Medical First PA27 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Owings Mills
Clinicians with the same Medicare primary specialty in Owings Mills, MD — not a recommendation.
Other clinicians in Chesapeake Urology Associates LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2019 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1356957534 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians