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DR. KRISTIE LYNNE MAST M.D.
NPI 1922058759
Family Medicine in Philadelphia, PA

Active since May 11, 2006PECOS EnrolledAccepts Medicare Assignment
4417 N 6TH ST, PHILADELPHIA, PA 19140(215) 302-3600(215) 329-2369 Get Directions Write a Review

NPPES record last updated: April 22, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Kristie Lynne Mast M.d. NPPES

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

DR. KRISTIE LYNNE MAST M.D. (NPI 1922058759) is an individual family medicine provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD067538L) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS and is a graduate of Medical College Of Pennsylvania (1996).

NPPES Registry Identity

NPI1922058759
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. KRISTIE LYNNE MASTCredential: M.D.
Location Address4417 N 6TH STPhiladelphia, PA 19140-2319
Mailing Address4417 N 6th StPhiladelphia, PA 19140-2319 · (215) 302-3600 · Fax (215) 329-2369
Phone(215) 302-3600
Fax(215) 329-2369
Sole ProprietorNo
Medical School CMSMedical College Of PennsylvaniaGraduated 1996
Enumeration DateMay 11, 2006
Last NPPES UpdateApril 22, 2025
NPPES CertifiedApril 22, 2025
✔ NPI 1922058759 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in PA · MD067538L
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
4417 N 6TH ST, Philadelphia, PA 19140
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Other Identifiers 1

Medicaid01784620PA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Kristie Lynne Mast M.d. 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 ID2668616004
PECOS Enrollment IDI20130925000114
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 19140 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
$92.69 typical visit price
range $59.88 – $180.99
Typical copayment $23.17 (range $14.97 – $45.24)
Most-billed visit code 99203
Established Patient
$105.21 typical visit price
range $19.30 – $147.29
Typical copayment $26.30 (range $4.82 – $36.82)
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.

DOMINIC DERENGE D.O.
Family Medicine
4417 N 6TH ST
PHILADELPHIA, PA 19140
Philadelphia County (215) 302-6000
DHIVYA T PATTANIYIL MSN, CRNP
Nurse Practitioner (Family)
4417 N 6TH ST
PHILADELPHIA, PA 19140
Philadelphia County (215) 302-3600
HELEN MUTOKO
Nurse Practitioner (Family)
4417 N 6TH ST
PHILADELPHIA, PA 19140
Philadelphia County (215) 302-3600
MARY SIMMS LPC
Counselor (Mental Health)
4417 N 6TH ST
PHILADELPHIA, PA 19140
Philadelphia County (215) 302-3600
OANH HOANG VO CRNP
Nurse Practitioner (Family)
4417 N 6TH ST
PHILADELPHIA, PA 19140
Philadelphia County (215) 302-3600
KERITH DUGGAN CRNP
Nurse Practitioner (Pediatrics)
4417 N 6TH ST
PHILADELPHIA, PA 19140
Philadelphia County (215) 302-3600
ESPERANZA HEALTH CENTER, INC.
Clinic/Center (Federally Qualified Health Center (FQHC))
4417 N 6TH ST, ESPERANZA HEALTH CEN
PHILADELPHIA, PA 19140
Philadelphia County (215) 302-3150
CHRISTINA ELYSE DERENGE PSYD
Psychologist
4417 N 6TH ST
PHILADELPHIA, PA 19140
Philadelphia County (215) 302-3600

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 Kristie Mast's NPI number?

The NPI number for Kristie Mast is 1922058759. It was assigned to this individual provider in the NPPES registry on May 11, 2006.

Where is Kristie Mast located?

Kristie Mast practices at 4417 N 6th St, Philadelphia, PA 19140. The listed phone number is (215) 302-3600.

What is Kristie Mast's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Kristie Mast enrolled in Medicare?

Yes. Kristie Mast 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.

When was this NPI record last updated?

The NPPES record for Kristie Mast was last updated on April 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.