MARGARET WEBB CRNP-PMH
NPI 1235739558
Nurse Practitioner - Psychiatric/Mental Health in Aberdeen, MD

Active since October 27, 2020PECOS EnrolledAccepts Medicare Assignment
4513 PHILADELPHIA RD, ABERDEEN, MD 21001(443) 412-5005(443) 951-6159 Get Directions Write a Review

NPPES record last updated: September 23, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 20, 2021, Oct 27, 2020 (2 updates tracked since 2020).

About Margaret Webb Crnp-pmh NPPES

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

MARGARET WEBB CRNP-PMH (NPI 1235739558) is an individual psychiatric/mental health provider in Aberdeen, Maryland, licensed in Maryland (R147711) and active in the NPI registry since October 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2021).

NPPES Registry Identity

NPI1235739558
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameMARGARET WEBBCredential: CRNP-PMH
Location Address4513 PHILADELPHIA RDAberdeen, MD 21001-1501
Mailing Address4513 Philadelphia RdAberdeen, MD 21001-1501 · (443) 412-5005 · Fax (443) 951-6159
Fax(443) 951-6159
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateOctober 27, 2020
Last NPPES UpdateSeptember 23, 20252 updates tracked since enumeration
NPPES CertifiedSeptember 23, 2025
✔ NPI 1235739558 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in MD · R147711
4513 PHILADELPHIA RD, Aberdeen, MD 21001

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

Margaret Webb Crnp-pmh 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 ID1759770035
PECOS Enrollment IDI20211108000022
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

2

Medicare enrollment records show Margaret Webb reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Same address
Psychiatric/Mental Health
4513 PHILADELPHIA RD
Aberdeen, MD 21001
  • Reassigned Medicare billing, Maryland enrollment
  • 6 clinicians in this Medicare group
Federally Qualified Health Center (FQHC)
413 W BEL AIR AVE
Aberdeen, MD 21001
  • Reassigned Medicare billing, Maryland enrollment
  • 24 clinicians in this Medicare group

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21001 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 6

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

Social Worker (Clinical)
4513 PHILADELPHIA RD
ABERDEEN, MD 21001
Nurse Practitioner (Psychiatric/Mental Health)
4513 PHILADELPHIA RD
ABERDEEN, MD 21001
Behavior Analyst
4513 PHILADELPHIA RD
ABERDEEN, MD 21001
Social Worker (Clinical)
4513 PHILADELPHIA RD
ABERDEEN, MD 21001
Nurse Practitioner (Psychiatric/Mental Health)
4513 PHILADELPHIA RD
ABERDEEN, MD 21001
Social Worker (Clinical)
4513 PHILADELPHIA RD
ABERDEEN, MD 21001

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 Margaret Webb's NPI number?

The NPI number for Margaret Webb is 1235739558. It was assigned to this individual provider in the NPPES registry on October 27, 2020.

Where is Margaret Webb located?

Margaret Webb practices at 4513 Philadelphia Rd, Aberdeen, MD 21001. The listed phone number is (443) 412-5005.

What is Margaret Webb's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Margaret Webb enrolled in Medicare?

Yes. Margaret Webb 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 Margaret Webb's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Webb reassigns Medicare benefits to 2 organizations: Monarc, LLC (Aberdeen, MD) and West Cecil Health Center Inc. (Aberdeen, MD). 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 Margaret Webb's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Margaret Webb was last updated on September 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.