Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Dr. Christine Bub , MD

Orthopaedic Surgery โ€ข Worcester, MA

Active NPI 1750815684 Individual Practitioner Female Practitioner Accepts Medicare assignment
Practice location in NPPES

55 Lake Ave N
Worcester, MA 016550002

Call 5083342372 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

55 Lake Ave N

Worcester, MA 016550002

Telephone 5083342372
Fax 5083343408
Organization at the Same NPPES Address or Phone
Umass Memorial Medical Center Facility NPI 1679574933

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 1 additional practice-address record in San Francisco, CA. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 1 group name: Umass Memorial Medical Group Inc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

2017

Medicare patients

155 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider, 2024.

Medicare-allowed amount

About $87,576 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Paid by Medicare

About $69,088 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Open Payments general payments, program year 2025

All general payments: $545.60 across 20 records.

By nature of payment

  • Food and Beverage: $545.60 across 20 records.

Reporting-company totals

  • Stryker Corporation: $434.70 across 17 records.
  • DePuy Synthes Sales Inc.: $94.95 across 2 records.
  • Ossur Americas, Inc.: $15.95 across 1 record.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

9 years (graduated 2017)

CMS Doctors and Clinicians data list 2017 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2017

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Bub has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Bub as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Worcester and Massachusetts

Billing and prescribing volume is not a quality rating.

Medicare Part B services

Fewer Medicare Part B services than 65% of clinicians listed under Orthopaedic Surgery in Worcester, MA (2024, 30 clinicians with data). Median for this group: 501. Middle half: 223 to 1,066.

Fewer Medicare Part B services than 80% of clinicians listed under Orthopaedic Surgery in Massachusetts (2024, 379 clinicians with data). Median for this group: 943. Middle half: 391 to 2,997.

Medicare-allowed amount

Close to the middle for clinicians listed under Orthopaedic Surgery in Worcester, MA (2024, 30 clinicians with data). Median for this group: $70,309. Middle half: $23,397 to $144,117.

Close to the middle for clinicians listed under Orthopaedic Surgery in Massachusetts (2024, 379 clinicians with data). Median for this group: $106,534. Middle half: $39,615 to $188,576.

Paid by Medicare

Close to the middle for clinicians listed under Orthopaedic Surgery in Worcester, MA (2024, 30 clinicians with data). Median for this group: $52,909. Middle half: $16,807 to $110,014.

Close to the middle for clinicians listed under Orthopaedic Surgery in Massachusetts (2024, 379 clinicians with data). Median for this group: $78,919. Middle half: $29,480 to $142,985.

45 active clinicians are listed under Orthopaedic Surgery with a practice address in Worcester, MA (692 in Massachusetts).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Worcester

13.3% of these 45 clinicians have the CMS telehealth indicator.

75.6% of these 45 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments ยท Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 โ€“ December 31, 2025): 20 records totaling $545.60.

Manufacturer Payment Nature Product Type Amount ($)
DePuy Synthes Sales Inc.
Food and Beverage
In-kind items and services
VA-LCP General $79.05
Stryker Corporation
Food and Beverage
In-kind items and services
PANGEA General $51.19
Stryker Corporation
Food and Beverage
In-kind items and services
PANGEA General $51.00
Stryker Corporation
Food and Beverage
In-kind items and services
T2 ALPHA General $35.95
Stryker Corporation
Food and Beverage
In-kind items and services
PANGEA General $33.00
Stryker Corporation
Food and Beverage
In-kind items and services
GAMMA General $32.28
Stryker Corporation
Food and Beverage
In-kind items and services
PANGEA General $28.80
Stryker Corporation
Food and Beverage
In-kind items and services
GAMMA General $24.36
Stryker Corporation
Food and Beverage
In-kind items and services
T2 ALPHA General $23.94
Stryker Corporation
Food and Beverage
In-kind items and services
T2 ALPHA General $23.40
Stryker Corporation
Food and Beverage
In-kind items and services
T2 ALPHA General $22.99
Stryker Corporation
Food and Beverage
In-kind items and services
T2 ALPHA General $22.88
Stryker Corporation
Food and Beverage
In-kind items and services
GAMMA General $19.76
Stryker Corporation
Food and Beverage
In-kind items and services
GAMMA General $17.28
Stryker Corporation
Food and Beverage
In-kind items and services
GAMMA General $16.47
Ossur Americas, Inc.
Food and Beverage
In-kind items and services
โ€” General $15.95
DePuy Synthes Sales Inc.
Food and Beverage
In-kind items and services
NA General $15.90
Stryker Corporation
Food and Beverage
In-kind items and services
T2 ALPHA General $14.54
Stryker Corporation
Food and Beverage
In-kind items and services
PANGEA General $12.66
Stryker Corporation
Food and Beverage
In-kind items and services
PANGEA General $4.20

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B ยท Data Year 2024
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2022โ€“2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2023โ€“2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
89 66 $445.00 $95.63
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
69 67 $667.00 $172.03
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
31 31 $547.00 $132.90
27245 Treatment of broken neck of thigh bone with bone implant
30 30 $6343.00 $1229.50
27236 Treatment of upper end of broken thigh bone with placement of stabilizing device or prosthetic replacement
21 21 $5581.71 $1200.15
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
15 14 $300.00 $65.79

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2023-07-11
Orthopaedic Surgery Primary Specialty

NUCC Taxonomy Code: 207X00000X

License # reported to NPPES MA 1015468

An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

Orthopaedic Surgery

NUCC Taxonomy Code: 207X00000X

License # reported to NPPES CA A177741

An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

Student in an Organized Health Care Education/Training Program

NUCC Taxonomy Code: 390200000X

An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Massachusetts Board of Registration in Medicine.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - ORTHOPEDIC SURGERY

Medicare Enrollment ID

I20230720002223

Enrollment State Jurisdiction

MA

PECOS Control ID

1254675580

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Umass Memorial Medical Group Inc

55 Lake Ave N, Worcester, MA 016550002

Phone: 5083341000

Secondary Practice Locations

2550 23rd St Bldg 92nd

San Francisco, CA 941103504

Phone: 6282068812

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

10 listed
NPI 1528633096

Doctor of Podiatric Medicine

Dr. Jeffrey Chhim , DNP MPH FNP-C RN

Nurse Practitioner - Family

NPI 1588289300

DNPMPHFNPCRN

NPI 1033405741

Doctor of Podiatric Medicine

Dr. Walter Leclair , MD

Orthopaedic Surgery

NPI 1417931544

Doctor of Medicine (M.D.)

Dr. Scott Pascal , MD

Orthopaedic Surgery

NPI 1689069601

Doctor of Medicine (M.D.)

Lily Reitzel

Nurse Practitioner - Acute Care

NPI 1497336903

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

12 Historical Events
๐Ÿ“
Updated Practice Location July 11, 2023

Registered at 55 LAKE AVE N, WORCESTER, MA 016550002 (Tel: 5083342372)

๐Ÿ“
Updated Business Mailing Address July 11, 2023

Registered at PO BOX 415348, BOSTON, MA 022415348

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) July 11, 2023

Orthopaedic Surgery (license number reported to NPPES: CA A177741)

๐Ÿ“
Updated Practice Location August 05, 2022

Registered at 2550 23RD ST BLDG 92ND, SAN FRANCISCO, CA 941103504 (Tel: 6282068812)

๐Ÿ“
Updated Business Mailing Address August 05, 2022

Registered at 2550 23RD ST BLDG 92ND, SAN FRANCISCO, CA 941103504 (Tel: 6282068812)

๐Ÿ‘ค
Provider Name / Credentials Updated August 05, 2022

Recorded as CHRISTINE BUB, MD

โœ…
NPI Profile Active April 18, 2017

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) April 18, 2017

Registered at 27005 76TH AVE, NEW HYDE PARK, NY 110401402 (Tel: 7184704475)

๐Ÿ“
Business Mailing Address (Initial Record) April 18, 2017

Registered at 27005 76TH AVE, NEW HYDE PARK, NY 110401402 (Tel: 7184704475)

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) April 18, 2017

Recorded as CHRISTINE BUB

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) April 18, 2017

Student in an Organized Health Care Education/Training Program

๐ŸŸข
Initial NPI Registration & Enumeration April 18, 2017

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1750815684
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 18, 2017
Last Update: July 11, 2023
Sole Proprietor: No

Other Orthopaedic Surgery Specialists in Worcester

All Orthopaedic Surgery Specialists in Worcester

Mailing Address

Po Box 415348

Boston, MA 022415348

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.