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DR. MARY R HAWTHORNE M.D.
NPI 1013990787
Internal Medicine in Worcester, MA

Active since November 27, 2005PECOS Enrolled
291 LINCOLN ST, WORCESTER, MA 01605(508) 791-8524(508) 754-6771 Get Directions Write a Review

NPPES record last updated: December 9, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Dec 9, 2020, Oct 27, 2020, Jan 22, 2020 (3 updates tracked since 2020).

About Dr. Mary R Hawthorne M.d. NPPES

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

DR. MARY R HAWTHORNE M.D. (NPI 1013990787) is an individual internal medicine provider in Worcester, Massachusetts, licensed in Massachusetts (51975) and active in the NPI registry since November 2005. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1013990787
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. MARY R HAWTHORNECredential: M.D.
Location Address291 LINCOLN STWorcester, MA 01605-3643
Mailing AddressPo Box 415348Boston, MA 02241-5348
Phone(508) 791-8524
Fax(508) 754-6771
Sole ProprietorNo
Enumeration DateNovember 27, 2005
Last NPPES UpdateDecember 9, 20203 updates tracked since enumeration
NPPES CertifiedDecember 9, 2020
✔ NPI 1013990787 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 · 51975
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.
291 LINCOLN ST, Worcester, MA 01605
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Other Identifiers 1

Medicaid6175163MA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Mary R Hawthorne M.d. 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 Mary Hawthorne reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Umass Memorial Medical Group Inc
1.8 mi
Internal Medicine
55 LAKE AVE N
Worcester, MA 01655
  • Reassigned Medicare billing, Massachusetts enrollment
  • 2,902 clinicians in this Medicare group
NPI 1760445373 (508) 334-1000

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
104 services91 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
69 services60 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
43 services34 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
39 services31 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01605 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 6

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
17 suppliers43 claims85 services$5.04 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
7 suppliers12 claims12 services$1.05 avg. paid by Medicare
Lubricant, individual sterile packet, each A4332
DME-Medical/Surgical Supplies · category DA000N
1 supplier12 claims1,500 services$0.11 avg. paid by Medicare
Intermittent urinary catheter; straight tip, with or without coating (teflon, silicone, silicone elastomer, or hydrophilic, etc.), each A4351
DME-Orthotic Devices · category DF008N
1 supplier12 claims1,500 services$1.70 avg. paid by Medicare
Nebulizer, with compressor E0570
DME-Other DME · category DE000N
1 supplier15 claims15 services$2.93 avg. paid by Medicare
Standard wheelchair K0001
DME-Wheelchairs · category DD000N
2 suppliers11 claims11 services$11.76 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.

DR. JAMES E FANALE M.D.
Internal Medicine
291 LINCOLN ST
WORCESTER, MA 01605
Worcester County (508) 334-6251
SEVIL HEMAYAT M.D
Internal Medicine
291 LINCOLN ST
WORCESTER, MA 01605
Worcester County (508) 791-8524
MARIAN SABA MD
Internal Medicine
291 LINCOLN ST
WORCESTER, MA 01605
Worcester County (508) 791-8524
MS. TRACY M. CORMIER NP
Nurse Practitioner
291 LINCOLN ST, EMPLOYEE HEALTH
WORCESTER, MA 01605
Worcester County (508) 793-6400
DR. HAWA OZIEN ABU MD
Internal Medicine (Geriatric Medicine)
291 LINCOLN ST
WORCESTER, MA 01605
Worcester County (508) 334-6251
DOUGLAS MISAEL PALACIOS HERNANDEZ
Internal Medicine
291 LINCOLN ST
WORCESTER, MA 01605
Worcester County (508) 799-2922
HAHNEMANN UROLOGY ASSOCIATES, INC.
Urology
291 LINCOLN ST, SUITE 201
WORCESTER, MA 01605
Worcester County (508) 755-8663
JAMES P HUGHES MD PC
Otolaryngology
291 LINCOLN ST
WORCESTER, MA 01605
Worcester County (508) 752-3439

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 Hawthorne's NPI number?

The NPI number for Mary Hawthorne is 1013990787. It was assigned to this individual provider in the NPPES registry on November 27, 2005.

Where is Mary Hawthorne located?

Mary Hawthorne practices at 291 Lincoln St, Worcester, MA 01605. The listed phone number is (508) 791-8524.

What is Mary Hawthorne's specialty?

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

Is Mary Hawthorne enrolled in Medicare?

Yes. Mary Hawthorne is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mary Hawthorne's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Hawthorne reassigns Medicare benefits to Umass Memorial Medical Group Inc (Worcester, MA). The 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 Mary Hawthorne's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mary Hawthorne was last updated on December 9, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.