MARK HRYNIEWICH MD
NPI 1255307781
Internal Medicine in Leominster, MA

Q: What is Mark Hryniewich's NPI number?

The NPI number for Mark Hryniewich is 1255307781. It was assigned to this individual provider in the NPPES registry on February 24, 2006.

Q: What is Mark Hryniewich's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Mark Hryniewich was last updated on December 11, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.

Active since February 24, 2006PECOS Enrolled

225 NEW LANCASTER RD, LEOMINSTER, MA 01453(978) 466-3212(978) 534-3581 Get Directions Write a Review

NPPES record last updated: December 11, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 11, 2018, Aug 17, 2017 (2 updates tracked since 2017).

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About Mark Hryniewich Md NPPES

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

MARK HRYNIEWICH MD (NPI 1255307781) is an individual internal medicine provider in Leominster, Massachusetts, licensed in Massachusetts (49755) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1255307781

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameMARK HRYNIEWICHCredential: MD

Location Address225 NEW LANCASTER RDLeominster, MA 01453-4958

Mailing Address5 Neponset St, Wot 2nd Fl, Ste C203Worcester, MA 01606-2714 · (978) 466-3212 · Fax (978) 534-3581

Phone(978) 466-3212

Fax(978) 534-3581

Sole ProprietorNo

Enumeration DateFebruary 24, 2006

Last NPPES UpdateDecember 11, 20182 updates tracked since enumeration

✔ NPI 1255307781 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in MA · 49755

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

225 NEW LANCASTER RD, Leominster, MA 01453

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Other Identifiers 1

Medicaid110064803AMA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mark Hryniewich Md 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.

Medicare Billing Reassignment

Medicare enrollment records show Mark Hryniewich reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Reliant Medical Group, Inc

14 mi

Family Medicine

5 NEPONSET ST
Worcester, MA 01606

Reassigned Medicare billing, Massachusetts enrollment
718 clinicians in this Medicare group

NPI 1720017528 (508) 852-0600

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 01453 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

$134.47 typical visit price

range $58.86 – $177.36

Typical copayment $33.61 (range $14.71 – $44.34)

Most-billed visit code 99204

Established Patient

$103.48 typical visit price

range $19.11 – $144.84

Typical copayment $25.87 (range $4.77 – $36.21)

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 8

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

11 suppliers32 claims92 services$4.79 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

5 suppliers14 claims18 services$0.85 avg. paid by Medicare

Skin barrier; solid, 4 x 4 or equivalent; each A4362

DME-Orthotic Devices · category DF010N

1 supplier11 claims110 services$2.59 avg. paid by Medicare

Ostomy skin barrier, solid 4 x 4 or equivalent, extended wear, without built-in convexity, each A4385

DME-Orthotic Devices · category DF010N

1 supplier11 claims110 services$4.47 avg. paid by Medicare

Ostomy deodorant, with or without lubricant, for use in ostomy pouch, per fluid ounce A4394

DME-Orthotic Devices · category DF010N

1 supplier11 claims88 services$2.28 avg. paid by Medicare

Ostomy skin barrier, with flange (solid, flexible or accordion), extended wear, without built-in convexity, 4 x 4 inches or smaller, each A4409

DME-Orthotic Devices · category DF010N

1 supplier11 claims110 services$5.46 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 20

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

MS. CHRISTINE ELIZABETH MANSEAU PA-C

Physician Assistant