ALYSSA KATE MEZOCHOW MD
NPI 1235627233
Internal Medicine - Infectious Disease in Philadelphia, PA
About Alyssa Kate Mezochow Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALYSSA KATE MEZOCHOW MD (NPI 1235627233) is an individual infectious disease provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD481542) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS, is affiliated with Lansdale Hospital, and maintains a secondary practice location in Sellersville.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
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
Alyssa Kate Mezochow Md 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.
Medicare Billing Reassignments
3Medicare enrollment records show Alyssa Mezochow reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Philadelphia, PA 19104
- Reassigned Medicare billing, Pennsylvania enrollment
- 100 clinicians in this Medicare group
Lansdale, PA 19446
- Reassigned Medicare billing, Pennsylvania enrollment
- Medicare enrollment name: St Lukes Physician Group Inc
- 2,851 clinicians in this Medicare group
Sellersville, PA 18960
- Reassigned Medicare billing, Pennsylvania enrollment
- 5 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.
Areas of Expertise CMS Part B claims 4
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.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Lansdale Hospital
Acute Care Hospitals · Lansdale, PASt Lukes Quakertown Hospital
Acute Care Hospitals · Quakertown, PAGrand View Health
Acute Care Hospitals · Sellersville, PAHospital Of Univ Of Pennsylvania
Acute Care Hospitals · Philadelphia, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19104 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
PHILADELPHIA, PA 19104
PHILADELPHIA, PA 19104
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 Alyssa Mezochow's NPI number?
The NPI number for Alyssa Mezochow is 1235627233. It was assigned to this individual provider in the NPPES registry on April 25, 2018.
Where is Alyssa Mezochow located?
Alyssa Mezochow practices at 3400 Spruce St, Philadelphia, PA 19104. The listed phone number is (215) 662-2200.
What is Alyssa Mezochow's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Alyssa Mezochow enrolled in Medicare?
Yes. Alyssa Mezochow 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 Alyssa Mezochow's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alyssa Mezochow reassigns Medicare benefits to 3 organizations: University Of Penn-Medical Group (Philadelphia, PA), St Luke's Physician Group Inc (Lansdale, PA) and Grand View Hospital (Sellersville, PA). 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 Alyssa Mezochow's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alyssa Mezochow accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Alyssa Mezochow as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Alyssa Mezochow affiliated with any hospitals?
According to CMS data, Alyssa Mezochow is affiliated with Lansdale Hospital, St Lukes Quakertown Hospital, Grand View Health and Hospital Of Univ Of Pennsylvania.
When was this NPI record last updated?
The NPPES record for Alyssa Mezochow was last updated on November 4, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.
# Alyssa Kate Mezochow, MD · NPI 1235627233
Infectious Disease physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since April 25, 2018.
## Identity
- **NPI:** 1235627233 (Entity type: Individual)
- **Enumerated:** April 25, 2018
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **State license:** MD481542 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 3400 SPRUCE ST, Philadelphia, PA 19104-4238
- **Phone:** (215) 662-2200
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): University Of Penn-Medical Group (NPI 1194832899, Philadelphia, PA); St Luke's Physician Group Inc (NPI 1295620607, Lansdale, PA); Grand View Hospital (NPI 1629393343, Sellersville, PA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Drexel University College Of Medicine, class of 2018
## Record status
- **NPPES last updated:** November 4, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1235627233) · Data from the CMS NPPES public registry.