Dr. Sandra E Tirrell , MD
Internal Medicine • Worcester, MA
55 Lake Ave N
Worcester, MA 016550002
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Sandra Tirrell is listed in NPPES under Internal Medicine.
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NPI assigned on June 12, 2008; this date does not establish years in practice.
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Published CMS data list 364 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99233 — Subsequent hospital care with moderate levelof medical decision making: 195 service units.
- 99232 — Subsequent hospital care with moderate levelof medical decision making: 83 service units.
- 99239 — Hospital discharge day management: 68 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 4 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 37 Medicare Part D prescriptions, including refills, in 2022.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2022. Published rows only; this is not a quality measure.
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Published Part D records, 2022:
- Prednisone — 14 prescription fills, including refills.
- Atorvastatin Calcium — 12 prescription fills, including refills.
- Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) — 11 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2022. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table · Guide: How to read Medicare Part D prescriber data
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Close to the middle for Medicare Part B services among clinicians listed under Internal Medicine in Worcester, MA (2024, 243 clinicians with data). Median for this group: 468. Middle half: 231 to 683.
Fewer Medicare Part B services than 60% of clinicians listed under Internal Medicine in Massachusetts (2024, 3,795 clinicians with data). Median for this group: 524. Middle half: 200 to 1,073.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 417 in 2020 to 364 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
55 Lake Ave N
Worcester, MA 016550002
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Virginia Hospital Center Physician Group Llc. 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
University Of Massachusetts Medical School
2008
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
141 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $42,679 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.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
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 – by Provider and Service, 2024.
Paid by Medicare
About $33,899 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
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 – by Provider and Service, 2024.
30-day fills
39 standardized 30-day fills in 2022
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$261 in 2022
The total cost of these prescriptions in 2022, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2022.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019–2025.
Years since graduation
18 years (graduated 2008)
CMS Doctors and Clinicians data list 2008 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished 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
2008
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.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
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, “Does your provider accept Medicare as full payment?”
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.
Enrolled in Medicare (PECOS)
Dr. Tirrell 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.
Can order Medicare-covered services
CMS lists Dr. Tirrell 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.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
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.
Compared with the same specialty in Worcester and Massachusetts
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Close to the middle for clinicians listed under Internal Medicine in Worcester, MA (2024, 243 clinicians with data). Median for this group: 468. Middle half: 231 to 683.
Fewer Medicare Part B services than 60% of clinicians listed under Internal Medicine in Massachusetts (2024, 3,795 clinicians with data). Median for this group: 524. Middle half: 200 to 1,073.
Medicare-allowed amount
Close to the middle for clinicians listed under Internal Medicine in Worcester, MA (2024, 243 clinicians with data). Median for this group: $47,005. Middle half: $22,251 to $72,069.
Close to the middle for clinicians listed under Internal Medicine in Massachusetts (2024, 3,795 clinicians with data). Median for this group: $50,126. Middle half: $19,685 to $96,485.
Paid by Medicare
Close to the middle for clinicians listed under Internal Medicine in Worcester, MA (2024, 243 clinicians with data). Median for this group: $36,195. Middle half: $16,745 to $55,654.
Close to the middle for clinicians listed under Internal Medicine in Massachusetts (2024, 3,795 clinicians with data). Median for this group: $38,152. Middle half: $14,838 to $74,912.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Tirrell are from 2022.
448 active clinicians are listed under Internal Medicine with a practice address in Worcester, MA (6,830 in Massachusetts).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Worcester
16.3% of these 448 clinicians have the CMS telehealth indicator.
57.6% of these 448 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 13% from 417 in 2020 to 364 in 2024.
- 2020: 417
- 2021: 308
- 2022: 373
- 2023: 202
- 2024: 364
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Medicare-allowed amount
Medicare-allowed amount varied from year to year: $47,044 in 2020 and $42,679 in 2024.
- 2020: $47,044
- 2021: $34,336
- 2022: $40,300
- 2023: $25,108
- 2024: $42,679
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Paid by Medicare
Paid by Medicare varied from year to year: $36,995 in 2020 and $33,899 in 2024.
- 2020: $36,995
- 2021: $27,485
- 2022: $31,641
- 2023: $19,772
- 2024: $33,899
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Medicare Part D prescriptions
Medicare Part D prescriptions went from 15 in 2018 to 37 in 2022.
- 2018: 15
- 2020: 13
- 2022: 37
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30-day fills
30-day fills went from 15 in 2018 to 39 in 2022.
- 2018: 15
- 2020: 13
- 2022: 39
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Part D drug cost
Part D drug cost went from $50 in 2018 to $261 in 2022.
- 2018: $50
- 2020: $147
- 2022: $261
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2022), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 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 – by Provider and Service data, 2017–2024; 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 |
|---|---|---|---|---|
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99233
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
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195 | 96 | $285.24 | $125.41 |
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99232
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
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83 | 47 | $186.33 | $83.43 |
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99239
Hospital discharge day management, more than 30 minutes
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68 | 68 | $301.77 | $120.32 |
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99223
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
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18 | 18 | $1275.35 | $173.22 |
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.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2022.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Prednisone | Prednisone | 14 | 106 | $45.96 | 13 |
| Atorvastatin Calcium | Atorvastatin Calcium | 12 | 420 | $83.80 | — |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 11 | 69 | $130.95 | 11 |
Source: CMS Part D by Provider and Drug, 2022; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 207R00000X
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.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - HOSPITALIST
I20170301001917
DC
0749451177
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
Virginia Hospital Center Physician Group Llc
1625 N George Mason Dr, Arlington, VA 222053690
Phone: 7037174502
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner - Acute Care
Certified Nurse Practitioner
Internal Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner
Nurse Practitioner
Career & Practice History
NPI enumerated June 12, 2008.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Internal Medicine Providers in Worcester
- Dr. Douglas Groves, MD
- Dr. Ninan Polackal, MD
- Dr. Sonal Singh, MD
- Nicholas Koen
- Dr. Heidi Chamula, DO
- Dr. Wai Fung Hau, MD
Mailing Address
Po Box 415348
Boston, MA 022415348
Phone: 8002258885