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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.

DR. MARY C STOCK M.D.
NPI 1871589127
Family Medicine in Newtown, PA

Active since September 22, 2005PECOS Enrolled
2700 S EAGLE RD, NEWTOWN, PA 18940(215) 369-8614(215) 521-6415 Get Directions Write a Review

NPPES record last updated: September 24, 2026. Verified against the NPPES registry weekly; last sync: October 11, 2026.

Record update history: Sep 24, 2026, Dec 3, 2015 (2 updates tracked since 2015).

About Dr. Mary C Stock M.d. NPPES

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

DR. MARY C STOCK M.D. (NPI 1871589127) is an individual family medicine provider in Newtown, Pennsylvania, licensed in Pennsylvania (MD434419) and active in the NPI registry since September 2005. She is enrolled in Medicare PECOS, is affiliated with Jefferson Health- Northeast, and maintains a secondary practice location in Allentown.

NPPES Registry Identity

NPI1871589127
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. MARY C STOCKCredential: M.D.
Location Address2700 S EAGLE RDNewtown, PA 18940-1570
Mailing AddressPo Box 783311Philadelphia, PA 19178-3311
Phone(215) 369-8614
Fax(215) 521-6415
Sole ProprietorNo
Medical School CMSPennsylvania State University College Of MedicineGraduated 2001
Enumeration DateSeptember 22, 2005
Last NPPES UpdateSeptember 24, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 24, 2026
✔ NPI 1871589127 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 · MD434419
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.
2700 S EAGLE RD, Newtown, PA 18940
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Other Names 1

Former Name (1)Dr. Mary Catherine Stock-keister M.d.

Secondary Practice Location 1

Location 11730 Chew StAllentown, PA 18104-5549 · Phone (610) 969-3500 · Fax (610) 969-3509

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter Health, Ambetter Health of Delaware.Insurance ›

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. Mary C Stock 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 ID7911075643
PECOS Enrollment IDI20081008000640
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.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Jefferson Health- Northeast

Acute Care Hospitals · Philadelphia, PA
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390115
Location10800 Knights RoadPhiladelphia, PA 19114 · Philadelphia County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 18940 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.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
2 suppliers22 claims22 services$185.29 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 11

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

CHRISTOPHER MARTIN ALAND MD
Orthopaedic Surgery
2700 S EAGLE RD
NEWTOWN, PA 18940
Bucks County (800) 321-9999
NANCY DIANE HORAN PT
Physical Therapist
2700 S EAGLE RD
NEWTOWN, PA 18940
Bucks County (800) 321-9999
RECONSTRUCTIVE ORTHOPAEDIC ASSOCIATES II, P.C.
Prosthetic/Orthotic Supplier
2700 S EAGLE RD, SUITE 201
NEWTOWN, PA 18940
Bucks County (267) 753-2550
DAVID MARKOWITZ, M.D., P.A.
Physical Medicine & Rehabilitation
2700 S EAGLE RD
NEWTOWN, PA 18940
Bucks County (856) 317-0666
KERRI ROBERTS ATC
Contractor
2700 S EAGLE RD
NEWTOWN, PA 18940
Bucks County (215) 642-6930
JESSICA CALLENDER DPT
Physical Therapist
2700 S EAGLE RD
NEWTOWN, PA 18940
Bucks County (800) 321-9999
RECONSTRUCTIVE ORTHOPAEDIC ASSOCIATES, II, P.C.
Prosthetic/Orthotic Supplier
2700 S EAGLE RD
NEWTOWN, PA 18940
Bucks County (267) 339-3500
SHERRY S ABRAHAM PT
Physical Therapist
2700 S EAGLE RD
NEWTOWN, PA 18940
Bucks County (267) 758-2550

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 Mary Stock's NPI number?

The NPI number for Mary Stock is 1871589127. It was assigned to this individual provider in the NPPES registry on September 22, 2005. The provider is also known as Dr. Mary Catherine Stock-Keister M.D..

Where is Mary Stock located?

Mary Stock practices at 2700 S Eagle Rd, Newtown, PA 18940. The listed phone number is (215) 369-8614.

What is Mary Stock's specialty?

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

Is Mary Stock enrolled in Medicare?

Yes. Mary Stock 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.

What insurance does Mary Stock accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Mary Stock 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 Mary Stock affiliated with any hospitals?

According to CMS data, Mary Stock is affiliated with Jefferson Health- Northeast.

When was this NPI record last updated?

The NPPES record for Mary Stock was last updated on September 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.