1. Home
  2. Directory
  3. Massachusetts
  4. Mendon
  5. Internal Medicine
  6. NPI Profile

BONNIE J BIDINGER M.D.
NPI 1326029463
Internal Medicine - Rheumatology in Mendon, MA

Active since November 07, 2005PECOS EnrolledAccepts Medicare Assignment
12 UXBRIDGE RD, MENDON, MA 01756(508) 634-6825(508) 634-6829 Get Directions Write a Review

NPPES record last updated: August 5, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Bonnie J Bidinger M.d. NPPES

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

BONNIE J BIDINGER M.D. (NPI 1326029463) is an individual rheumatology provider in Mendon, Massachusetts, licensed in Massachusetts (209206) and active in the NPI registry since November 2005. She is enrolled in Medicare PECOS, is affiliated with Milford Regional Medical Center, and maintains a secondary practice location in Milford.

NPPES Registry Identity

NPI1326029463
Entity TypeIndividualFemale
Primary Taxonomy207RR0500X
Provider Legal NameBONNIE J BIDINGERCredential: M.D.
Location Address12 UXBRIDGE RDMendon, MA 01756-1094
Mailing Address9 Industrial Rd, Suite 5Milford, MA 01757-3588 · (508) 473-1480 · Fax (508) 473-1210
Phone(508) 634-6825
Fax(508) 634-6829
Sole ProprietorNo
Medical School CMSJs Weill Medical College, Cornell UniversityGraduated 1998
Enumeration DateNovember 7, 2005
Last NPPES UpdateAugust 5, 2025
NPPES CertifiedAugust 5, 2025
✔ NPI 1326029463 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in MA · 209206
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
12 UXBRIDGE RD, Mendon, MA 01756
Open in Google Maps ↗

Secondary Practice Location 1

Location 1100 Medway Rd Ste 101Milford, MA 01757-2923 · Phone (508) 634-6825 · Fax (508) 634-6829

Other Identifiers 1

Medicaid2038447MA

Accepted Insurance

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

Bonnie J Bidinger 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 ID1153312475
PECOS Enrollment IDI20040524000933
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 Reassignments

2

Medicare enrollment records show Bonnie Bidinger reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Milford Regional Physician Group, Inc.
3.1 mi
Cardiovascular Disease
308 MAIN ST
Milford, MA 01757
  • Reassigned Medicare billing, Massachusetts enrollment
  • 238 clinicians in this Medicare group
NPI 1285031039 (508) 731-2560
Umass Memorial Medical Group, Inc.
15 mi
Urgent Care
78 SUTTON AVE
Oxford, MA 01540
  • Reassigned Medicare billing, Massachusetts enrollment
  • 2,902 clinicians in this Medicare group
NPI 1982381018 (508) 499-1760

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 8

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 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.
293 services214 patients
Aspiration and/or injection of fluid from large joint 20610
This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.
190 services100 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.
72 services56 patients
Injection, methylprednisolone acetate, 80 mg J1040
Methylprednisolone acetate is a strong anti-inflammatory medication. It is often given as an 80 mg injection to reduce inflammation and pain. It's commonly used for conditions like arthritis, allergic disorders, or other inflammatory diseases.
58 services41 patients
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.
52 services44 patients
Injection, methylprednisolone acetate, 40 mg J1030
Methylprednisolone acetate is a medication given through an injection. It's a type of corticosteroid, which reduces inflammation and immune responses. It can be used to treat various conditions like arthritis, allergies, and skin diseases. This dose is 40 mg.
42 services28 patients

Hospital Affiliations CMS Care Compare 2

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

Milford Regional Medical Center

Acute Care Hospitals · Milford, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number220090
Location14 Prospect StreetMilford, MA 01757 · Worcester County
Emergency services Birthing friendly

Umass Memorial Medical Center/University Campus

Acute Care Hospitals · Worcester, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220163
Location55 Lake Avenue NorthWorcester, MA 01655 · Worcester County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01756 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.

Other Providers at the Same Location NPPES 3

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

KERRI L. BATRA M.D.
Internal Medicine (Rheumatology)
12 UXBRIDGE RD
MENDON, MA 01756
Worcester County (508) 634-6620
MS. CHRISTINA LYN MORRISON RD
Dietitian, Registered
12 UXBRIDGE RD
MENDON, MA 01756
Worcester County (508) 634-6620
MR. WILLIAM MICHAEL VITALE NP
Nurse Practitioner
12 UXBRIDGE RD
MENDON, MA 01756
Worcester County (508) 634-6620

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 Bonnie Bidinger's NPI number?

The NPI number for Bonnie Bidinger is 1326029463. It was assigned to this individual provider in the NPPES registry on November 7, 2005.

Where is Bonnie Bidinger located?

Bonnie Bidinger practices at 12 Uxbridge Rd, Mendon, MA 01756. The listed phone number is (508) 634-6825.

What is Bonnie Bidinger's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Bonnie Bidinger enrolled in Medicare?

Yes. Bonnie Bidinger 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 Bonnie Bidinger's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Bonnie Bidinger reassigns Medicare benefits to 2 organizations: Milford Regional Physician Group, Inc. (Milford, MA) and Umass Memorial Medical Group, Inc. (Oxford, MA). 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 Bonnie Bidinger's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Bonnie Bidinger accept?

Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Bonnie Bidinger 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 Bonnie Bidinger affiliated with any hospitals?

According to CMS data, Bonnie Bidinger is affiliated with Milford Regional Medical Center and Umass Memorial Medical Center/University Campus.

When was this NPI record last updated?

The NPPES record for Bonnie Bidinger was last updated on August 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.