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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARISSA MAAS
NPI 1023644671
Urology in Philadelphia, PA

Active since March 16, 2020PECOS Enrolled
333 COTTMAN AVE, PHILADELPHIA, PA 19111(215) 728-2570 Get Directions Write a Review

NPPES record last updated: July 23, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 23, 2026, Mar 16, 2020 (2 updates tracked since 2020).

About Marissa Maas NPPES

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

MARISSA MAAS (NPI 1023644671) is an individual urology provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD494817) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS and maintains a secondary practice location in Los Angeles.

NPPES Registry Identity

NPI1023644671
Entity TypeIndividualFemale
Primary Taxonomy208800000X
Provider Legal NameMARISSA MAAS
Location Address333 COTTMAN AVEPhiladelphia, PA 19111-2434
Mailing Address3509 N Broad StPhiladelphia, PA 19140-4105
Phone(215) 728-2570
Sole ProprietorNo
Enumeration DateMarch 16, 2020
Last NPPES UpdateJuly 23, 20262 updates tracked since enumeration
NPPES CertifiedJuly 23, 2026
✔ NPI 1023644671 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyUrologyAllopathic & Osteopathic Physicians
Taxonomy Code208800000X
Licenses✔ Licensed in PA · MD494817✔ Licensed in CA · PTL6115
Definition
A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
333 COTTMAN AVE, Philadelphia, PA 19111
Open in Google Maps ↗

Secondary Practice Location 1

Location 11441 Eastlake Ave Ste 7416Los Angeles, CA 90089-1020 · Phone (323) 865-3700

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Marissa Maas 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19111 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
$137.17 typical visit price
range $59.88 – $180.99
Typical copayment $34.29 (range $14.97 – $45.24)
Most-billed visit code 99204
Established Patient
$74.47 typical visit price
range $19.30 – $147.29
Typical copayment $18.61 (range $4.82 – $36.82)
Most-billed visit code 99213
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.

FOX CHASE CANCER CENTER MEDICAL GROUP, INC.
Anesthesiology
333 COTTMAN AVE, MED STAFF OFFICE
PHILADELPHIA, PA 19111
Philadelphia County (215) 728-6900
JAMES SUN MD
Surgery (Surgical Oncology)
333 COTTMAN AVE
PHILADELPHIA, PA 19111
Philadelphia County (215) 854-9799
MS. MALA T KAILASAM MD
Internal Medicine
333 COTTMAN AVE, FOX CHASE CANCER CENTER
PHILADELPHIA, PA 19111
Philadelphia County (215) 728-6900
HEALTH SERVICES OF FOX CHASE CANCER CTR.
Radiology (Diagnostic Radiology)
333 COTTMAN AVE, RADIOLOGY ASSOCIATES OF FCCC
PHILADELPHIA, PA 19111
Philadelphia County (215) 728-6900
ELENA DREYZIN PA-C
Physician Assistant
333 COTTMAN AVE
PHILADELPHIA, PA 19111
Philadelphia County (888) 369-2427
FREWEINI TESFALEDET PA
Physician Assistant
333 COTTMAN AVE
PHILADELPHIA, PA 19111
Philadelphia County (215) 728-6900
MARIUSZ A WASIK MD
Pathology (Anatomic Pathology)
333 COTTMAN AVE
PHILADELPHIA, PA 19111
Philadelphia County (215) 728-3675
DR. BARBARA C. CAVANAUGH M.D.
Radiology (Diagnostic Radiology)
333 COTTMAN AVE
PHILADELPHIA, PA 19111
Philadelphia County (215) 728-3883

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 Marissa Maas's NPI number?

The NPI number for Marissa Maas is 1023644671. It was assigned to this individual provider in the NPPES registry on March 16, 2020.

Where is Marissa Maas located?

Marissa Maas practices at 333 Cottman Ave, Philadelphia, PA 19111. The listed phone number is (215) 728-2570.

What is Marissa Maas's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Is Marissa Maas enrolled in Medicare?

Yes. Marissa Maas is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Marissa Maas was last updated on July 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 days 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.