WINIFRED MAK MD
NPI 1912160680
Obstetrics & Gynecology - Reproductive Endocrinology in Philadelphia, PA
About Winifred Mak Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WINIFRED MAK MD (NPI 1912160680) is an individual reproductive endocrinology provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MT193189) and active in the NPI registry since July 2008. She is enrolled in Medicare PECOS and is a graduate of Other (1997).
NPPES Registry Identity
Specialties & Licenses 2
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
Winifred Mak 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 Winifred Mak reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Del Valle, TX 78617
- Reassigned Medicare billing, Texas enrollment
- 294 clinicians in this Medicare group
Austin, TX 78712
- Reassigned Medicare billing, Texas enrollment
- 208 clinicians in this Medicare group
Boerne, TX 78015
- Reassigned Medicare billing, Texas enrollment
- 2,397 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 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 Winifred Mak's NPI number?
The NPI number for Winifred Mak is 1912160680. It was assigned to this individual provider in the NPPES registry on July 3, 2008.
Where is Winifred Mak located?
Winifred Mak practices at 3400 Spruce St 1 Maloney, Philadelphia, PA 19104. The listed phone number is (215) 662-2459.
What is Winifred Mak's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Reproductive Endocrinology, with taxonomy code 207VE0102X.
Is Winifred Mak enrolled in Medicare?
Yes. Winifred Mak 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 Winifred Mak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Winifred Mak reassigns Medicare benefits to 3 organizations: The University Of Texas At Austin (Del Valle, TX), University Of Texas At Austin Dell Medical School (Austin, TX) and University Of Texas Health Science Center At San Antonio (Boerne, TX). 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 Winifred Mak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Winifred Mak accept?
Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 7 other insurers list Winifred Mak 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.
When was this NPI record last updated?
The NPPES record for Winifred Mak was last updated on July 3, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years 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.
# Winifred Mak, MD · NPI 1912160680
Reproductive Endocrinology physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since July 3, 2008.
## Identity
- **NPI:** 1912160680 (Entity type: Individual)
- **Enumerated:** July 3, 2008
- **Primary specialty:** Obstetrics & Gynecology - Reproductive Endocrinology · taxonomy 207VE0102X
- **State license:** MT193189 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 3400 SPRUCE ST, 1 MALONEY, Philadelphia, PA 19104-4206
- **Phone:** (215) 662-2459
## 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): The University Of Texas At Austin (NPI 1245612225, Del Valle, TX); University Of Texas At Austin Dell Medical School (NPI 1073066239, Austin, TX); University Of Texas Health Science Center At San Antonio (NPI 1417921834, Boerne, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1997
## Record status
- **NPPES last updated:** July 3, 2008
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Source: [NPI Profile](https://npiprofile.com/npi/1912160680) · Data from the CMS NPPES public registry.