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CASSANDRA RENNER
NPI 1235968975
Nurse Practitioner - Pediatrics in Baltimore, MD

Active since July 31, 2024PECOS Enrolled
6401 YORK RD, BALTIMORE, MD 21212(410) 887-3422 Get Directions Write a Review

NPPES record last updated: August 17, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 17, 2026, Jul 3, 2025, Jul 31, 2024 (3 updates tracked since 2024).

About Cassandra Renner NPPES

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

CASSANDRA RENNER (NPI 1235968975) is an individual pediatrics provider in Baltimore, Maryland, licensed in Maryland (R228474) and active in the NPI registry since July 2024. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1235968975
Entity TypeIndividualFemale
Primary Taxonomy363LP0200X
Provider Legal NameCASSANDRA RENNER
Location Address6401 YORK RDBaltimore, MD 21212-2152
Mailing Address6401 York RdBaltimore, MD 21212-2152
Phone(410) 887-3422
Sole ProprietorNo
Enumeration DateJuly 31, 2024
Last NPPES UpdateAugust 17, 20263 updates tracked since enumeration
NPPES CertifiedAugust 17, 2026
✔ NPI 1235968975 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · PediatricsPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0200X
License✔ Licensed in MD · R228474
6401 YORK RD, Baltimore, MD 21212
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Cassandra Renner is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Cassandra Renner reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Medstar Medical Group II LLC
1.5 mi
General Practice
5601 LOCH RAVEN BLVD, RUSSELL MORGAN BLDG 3RD FL
Baltimore, MD 21239
  • Reassigned Medicare billing, Maryland enrollment
  • 2,602 clinicians in this Medicare group
NPI 1184046187 (443) 444-5606
Maryland Family Care, Inc.
5.5 mi
Family Medicine
301 SAINT PAUL PL, 12TH FLOOR MCAULEY TOWER
Baltimore, MD 21202
  • Reassigned Medicare billing, Maryland enrollment
  • 257 clinicians in this Medicare group
NPI 1598718256 (410) 500-5500

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 21212 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 20

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

JOAN BURKER R.N.
Registered Nurse
6401 YORK RD
BALTIMORE, MD 21212
Baltimore City (410) 887-2454
MR. EVAN PHILIP DARLING CAC-AD, ADS
Counselor (Addiction (Substance Use Disorder))
6401 YORK RD
BALTIMORE, MD 21212
Baltimore City (410) 853-3388
KIM WILHELMI MS, BSN, RN
Registered Nurse (Community Health)
6401 YORK RD
BALTIMORE, MD 21212
Baltimore City (410) 887-2709
MS. PHYLLIS ANN HALL LCSW-C
Social Worker (Clinical)
6401 YORK RD
BALTIMORE, MD 21212
Baltimore City (410) 887-8291
MRS. CECELIA ELIZABETH FREUND R.N.
Registered Nurse (Community Health)
6401 YORK RD, 3RD FLOOR
BALTIMORE, MD 21212
Baltimore City (410) 887-3485
MRS. MICHELLE LORI DIPIETRO MSW
Case Manager/Care Coordinator
6401 YORK RD
BALTIMORE, MD 21212
Baltimore City (410) 887-2754
RENEE MICHELE YOUNGFELLOW RN , MPH
Registered Nurse
6401 YORK RD
BALTIMORE, MD 21212
Baltimore City (410) 887-2707
MS. NANCY JOAN MILLER A.P.R.N.
Nurse Practitioner (Family)
6401 YORK RD, THIRD FLOOR
BALTIMORE, MD 21212
Baltimore City (410) 887-2705

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 Cassandra Renner's NPI number?

The NPI number for Cassandra Renner is 1235968975. It was assigned to this individual provider in the NPPES registry on July 31, 2024.

Where is Cassandra Renner located?

Cassandra Renner practices at 6401 York Rd, Baltimore, MD 21212. The listed phone number is (410) 887-3422.

What is Cassandra Renner's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, with taxonomy code 363LP0200X.

Is Cassandra Renner enrolled in Medicare?

Yes. Cassandra Renner is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Cassandra Renner's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Cassandra Renner reassigns Medicare benefits to 2 organizations: Medstar Medical Group II LLC (Baltimore, MD) and Maryland Family Care, Inc. (Baltimore, 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 Cassandra Renner'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 Cassandra Renner was last updated on August 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.