MEGAN RYAN-RIFFLE CRNP
NPI 1356957534
Nurse Practitioner in Owings Mills, MD

Q: What is Megan Ryan-riffle's NPI number?

The NPI number for Megan Ryan-riffle is 1356957534. It was assigned to this individual provider in the NPPES registry on September 22, 2020.

Q: What is Megan Ryan-riffle's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Q: When was this NPI record last updated?

The NPPES record for Megan Ryan-riffle was last updated on July 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since September 22, 2020PECOS EnrolledAccepts Medicare Assignment

21 CROSSROADS DR STE 200, OWINGS MILLS, MD 21117(410) 581-8140 Get Directions Write a Review

NPPES record last updated: July 17, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 17, 2026, May 28, 2026, Aug 3, 2022 and 3 more (6 updates tracked since 2020).

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About Megan Ryan-riffle Crnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MEGAN RYAN-RIFFLE CRNP (NPI 1356957534) is an individual nurse practitioner in Owings Mills, Maryland, licensed in Maryland (R211398) and active in the NPI registry since September 2020. She is enrolled in Medicare PECOS, is affiliated with Frederick Health Hospital, and maintains 16 additional practice locations.

NPPES Registry Identity

NPI1356957534

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameMEGAN RYAN-RIFFLECredential: CRNP

Location Address21 CROSSROADS DR STE 200Owings Mills, MD 21117-5483

Mailing Address10200 Grand Central Ave Ste 220Owings Mills, MD 21117-4366

Phone(410) 581-8140

Sole ProprietorYes

Medical School CMSOtherGraduated 2019

Enumeration DateSeptember 22, 2020

Last NPPES UpdateJuly 17, 20266 updates tracked since enumeration

NPPES CertifiedJuly 17, 2026

✔ NPI 1356957534 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363L00000X

Licenses✔ Licensed in MD · R211398✔ Licensed in PA · SP023597

Definition

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License SP023597 (PA)

21 CROSSROADS DR STE 200, Owings Mills, MD 21117

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Secondary Practice Locations 16

Location 1141 Thomas Johnson DrFrederick, MD 21702-4502 · Phone (301) 846-0100

Location 275 Thomas Johnson DrFrederick, MD 21702-4895 · Phone (240) 215-6310

Location 3501 W 7th StFrederick, MD 21701-4586 · Phone (240) 215-6310

Location 4400 W 7th StFrederick, MD 21701-4506 · Phone (240) 215-6310

Location 5504 E Ridgeville BlvdMount Airy, MD 21771-5942 · Phone (240) 215-6310

Location 67211 Bank CtFrederick, MD 21703-8483 · Phone (240) 215-6310

Location 715 E Frederick StWalkersville, MD 21793-8234 · Phone (240) 215-6310

Location 83430 Worthington BlvdFrederick, MD 21704-7017 · Phone (240) 215-6310

Location 9230 W Patrick StFrederick, MD 21701-6945 · Phone (240) 215-6310

Location 1016403 Old Emmitsburg RdEmmitsburg, MD 21727-8929 · Phone (240) 215-6310

Location 116040 Sykesville RdEldersburg, MD 21784-6000 · Phone (301) 988-8222

Location 121562 Opossumtown PikeFrederick, MD 21702-4920 · Phone (240) 215-6310

Location 13450 S Washington St Ste AGettysburg, PA 17325-2500 · Phone (717) 339-3105 · Fax (717) 798-3670

Location 143000D Ventrie CtMyersville, MD 21773-7817 · Phone (240) 215-6310

Location 15194 Thomas Johnson DrFrederick, MD 21702-4679 · Phone (240) 215-6310

Location 161 Heritage LnEmmitsburg, MD 21727-9103 · Phone (301) 988-8822

Other Identifiers 1

OtherR211398Cvs

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Megan Ryan-riffle Crnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8022420876

PECOS Enrollment IDI20201218002237, I20201221000558

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Megan Ryan-riffle reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Chesapeake Urology Associates LLC

Same address

Urology

21 CROSSROADS DR, SUITE 200
Owings Mills, MD 21117

Reassigned Medicare billing, Maryland enrollment
166 clinicians in this Medicare group

NPI 1609823004 (410) 581-1600

Magass Family Medicine & Urgent Care

9.7 mi

Family

2970 DEDE RD
Finksburg, MD 21048

Reassigned Medicare billing, Maryland enrollment
3 clinicians in this Medicare group

NPI 1942718010 (443) 487-4053

Maryland Medical First P.A.

11 mi

Internal Medicine

8901 CLEMENT AVE
Baltimore, MD 21234

Reassigned Medicare billing, District of Columbia and Maryland enrollments
Medicare enrollment name: Maryland Medical First PA
24 clinicians in this Medicare group

NPI 1013005016 (410) 661-4670

Easy Health Medical Solutions PC

19 mi

Nurse Practitioner

8115 MAPLE LAWN BLVD STE 350
Fulton, MD 20759

Reassigned Medicare billing, Maryland enrollment
4 clinicians in this Medicare group

NPI 1972179141 (888) 836-0510

Frederick Health Medical Group LLC

22 mi

Family Medicine

504 E RIDGEVILLE BLVD
Mount Airy, MD 21771

Reassigned Medicare billing, Maryland enrollment
245 clinicians in this Medicare group

NPI 1114771862 (240) 215-6310

Wellspan Medical Group

26 mi

Urgent Care

96 SOFIA DR STE 208
Shrewsbury, PA 17361

Reassigned Medicare billing, Pennsylvania enrollment
3,080 clinicians in this Medicare group

NPI 1003229626 (717) 812-2400

Promed Preferred PA 5 Professional Corporation

169 mi

Internal Medicine

1314 54TH ST
Brooklyn, NY 11219

Reassigned Medicare billing, Pennsylvania enrollment
6 clinicians in this Medicare group

NPI 1053200410 (615) 499-3165

Promed Preferred VA Professional Corporation

169 mi

Internal Medicine

1314 54TH ST
Brooklyn, NY 11219

Reassigned Medicare billing, Virginia enrollment
4 clinicians in this Medicare group

NPI 1376343194 (615) 499-3165

Infinite Medical PC

328 mi

Family Medicine

7 CREEK LN
Bristol, RI 02809

Reassigned Medicare billing, District of Columbia and Maryland enrollments
11 clinicians in this Medicare group

NPI 1407483175 (718) 964-6161

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 19

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Ultrasound measurement of bladder capacity after voiding 51798

Ultrasound measurement of bladder capacity after voiding is a non-invasive test that uses sound waves to create images of your bladder. It's done after you've emptied your bladder to see if there's any leftover urine, which can help diagnose certain conditions.

510 services366 patients

Automated urinalysis test 81003

An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.

470 services376 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

455 services354 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

443 services383 patients

Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490

Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.

275 services109 patients

Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month 99439

Chronic Care Management services involve regular check-ins with healthcare professionals to manage two or more chronic conditions. It includes an additional 20 minutes of clinical staff time per month, directed by a healthcare professional, to ensure optimal health management.

230 services100 patients

Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes 99305

An initial nursing facility visit per day is a service where a healthcare professional spends about 35 minutes assessing a patient's health status. This includes reviewing medical history, conducting a physical exam, and developing a care plan based on the patient's needs.

120 services120 patients

Comprehensive assessment of and care planning for patients requiring chronic care management services (list separately in addition to primary monthly care management service) G0506

This service involves a thorough evaluation of patients needing ongoing care for chronic conditions. It includes creating a tailored care plan, coordinating with healthcare providers, and monitoring progress regularly. The goal is to provide optimal, personalized care for your long-term health needs.

119 services119 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

67 services12 patients

Simple bladder irrigation and/or instillation 51700

Bladder irrigation and/or instillation is a process where a sterile solution is introduced into the bladder to cleanse it or deliver medication. This procedure helps manage certain bladder conditions, ensuring optimal bladder health.

59 services42 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

58 services58 patients

Instillation of anti-cancer drug into bladder 51720

This procedure involves introducing a medication into the bladder to help fight off harmful cells. A small tube is gently placed into the area where urine exits the body. Through this tube, the medication is delivered directly into the bladder for maximum effectiveness.

43 services16 patients

Simple insertion of temporary bladder tube 51702

This procedure involves placing a temporary tube into your bladder to help with urine flow. It's done when the body can't naturally remove urine. The tube is inserted through a small opening and allows urine to drain into a bag. It's usually a short-term solution.

42 services20 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

38 services38 patients

Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 99211

This service involves an outpatient visit for established patients who may not need direct interaction with a healthcare professional. It could include reviewing test results, monitoring existing conditions, or adjusting treatment plans. It's typically done remotely, ensuring your comfort and convenience.

37 services12 patients

Care management services for behavioral health conditions, 20 minutes or more clinical staff time directed by health care professional 99484

Care management for behavioral health involves a healthcare professional directing clinical staff to provide you with support for 20 minutes or more. This service can include planning your care, coordinating services, and managing your health conditions to improve your overall well-being.

27 services14 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

19 services19 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

14 services14 patients

Telephone medical discussion with physician, 11-20 minutes 99442

This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.

12 services11 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Frederick Health Hospital

Acute Care Hospitals · Frederick, MD

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number210005

Location400 West Seventh StFrederick, MD 21701 · Frederick County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21117 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$94.08 typical visit price

range $60.73 – $183.44

Typical copayment $23.52 (range $15.18 – $45.86)

Most-billed visit code 99203

Established Patient

$106.59 typical visit price

range $19.60 – $149.17

Typical copayment $26.64 (range $4.90 – $37.29)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. LAURA GIUSTO M.D.

Urology

21 CROSSROADS DR STE 200
OWINGS MILLS, MD 21117

Baltimore County (410) 581-1600

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Megan Ryan-riffle's NPI number?

The NPI number for Megan Ryan-riffle is 1356957534. It was assigned to this individual provider in the NPPES registry on September 22, 2020.

Where is Megan Ryan-riffle located?

Megan Ryan-riffle practices at 21 Crossroads Dr Ste 200, Owings Mills, MD 21117. The listed phone number is (410) 581-8140.

What is Megan Ryan-riffle's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Megan Ryan-riffle enrolled in Medicare?

Yes. Megan Ryan-riffle is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Megan Ryan-riffle's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Megan Ryan-riffle reassigns Medicare benefits to 9 organizations: Chesapeake Urology Associates LLC (Owings Mills, MD), Magass Family Medicine & Urgent Care (Finksburg, MD), Maryland Medical First P.A. (Baltimore, MD), Easy Health Medical Solutions PC (Fulton, MD), Frederick Health Medical Group LLC (Mount Airy, MD) and 4 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Megan Ryan-riffle's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Megan Ryan-riffle affiliated with any hospitals?

According to CMS data, Megan Ryan-riffle is affiliated with Frederick Health Hospital.

When was this NPI record last updated?

The NPPES record for Megan Ryan-riffle was last updated on July 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.