DR. STEPHEN J. BONASERA MD
NPI 1780632729
Internal Medicine - Geriatric Medicine in Longmeadow, MA

Q: What is Stephen Bonasera's NPI number?

The NPI number for Stephen Bonasera is 1780632729. It was assigned to this individual provider in the NPPES registry on May 4, 2006.

Q: What is Stephen Bonasera's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Q: When was this NPI record last updated?

The NPPES record for Stephen Bonasera was last updated on January 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.

Active since May 04, 2006PECOS EnrolledAccepts Medicare Assignment

21 DWIGHT RD STE 204, LONGMEADOW, MA 01106(413) 795-0268(413) 795-8502 Get Directions Write a Review

NPPES record last updated: January 21, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. Stephen J. Bonasera Md NPPES

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

DR. STEPHEN J. BONASERA MD (NPI 1780632729) is an individual geriatric medicine provider in Longmeadow, Massachusetts, licensed in Massachusetts (290745) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Baystate Wing Hospital, and maintains a secondary practice location in Springfield.

NPPES Registry Identity

NPI1780632729

Entity TypeIndividualMale

Primary Taxonomy207RG0300X

Provider Legal NameDR. STEPHEN J. BONASERACredential: MD

Location Address21 DWIGHT RD STE 204Longmeadow, MA 01106-1765

Mailing Address280 Chestnut Street, 2nd FlSpringfield, MA 01199-1001 · (413) 794-5700

Phone(413) 795-0268

Fax(413) 795-8502

Sole ProprietorNo

Medical School CMSEmory University School Of MedicineGraduated 1995

Enumeration DateMay 4, 2006

Last NPPES UpdateJanuary 21, 2025

NPPES CertifiedJanuary 21, 2025

✔ NPI 1780632729 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RG0300X

License✔ Licensed in MA · 290745

Definition

An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.

21 DWIGHT RD STE 204, Longmeadow, MA 01106

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Secondary Practice Location 1

Location 1759 Chestnut StreetSpringfield, MA 01107-1619 · Phone (413) 794-3147 · Fax (413) 794-4054

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. Stephen J. Bonasera Md 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 ID5092876912

PECOS Enrollment IDI20220119002845

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.

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.

Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212

This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.

836 services103 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.

110 services78 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

64 services64 patients

Telephone medical discussion with physician, 21-30 minutes 99443

This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.

36 services25 patients

Hospital Affiliations CMS Care Compare 3

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

Baystate Wing Hospital

Acute Care Hospitals · Palmer, MA

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number220030

Location40 Wright StreetPalmer, MA 01069 · Hampden County

Emergency services

Baystate Noble Hospital

Acute Care Hospitals · Westfield, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220065

Location115 West Silver StreetWestfield, MA 01085 · Hampden County

Emergency services

Baystate Medical Center

Acute Care Hospitals · Springfield, MA

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220077

Location759 Chestnut StreetSpringfield, MA 01199 · Hampden County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01106 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

$177.36 typical visit price

range $58.86 – $177.36

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

Most-billed visit code 99205

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.

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Other Providers at the Same Location NPPES 8

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

LUBNA ATTAL MD

Internal Medicine (Geriatric Medicine)