Dr. Gerald J Chase , MD
Internal Medicine • Worcester, MA
367 Plantation St
Worcester, MA 016052323
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. Gerald Chase is listed in NPPES under Internal Medicine.
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NPI assigned on November 28, 2005; this date does not establish years in practice.
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Published CMS data list 85 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:
- 99213 — Established patient outpatient office visit: 54 service units.
- 99214 — Established patient outpatient office visit: 31 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 the full table · Guide: How to read Medicare Part B data
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Published CMS data list 226 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Atorvastatin Calcium — 49 prescription fills, including refills.
- Losartan Potassium — 32 prescription fills, including refills.
- Levothyroxine Sodium — 23 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 11 records in the table · Guide: How to read Medicare Part D prescriber data
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Fewer Medicare Part B services than 90% of 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 85% 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 609 in 2020 to 85 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
367 Plantation St
Worcester, MA 016052323
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: 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
Icahn School Of Medicine At Mount Sinai
1978
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
82 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 $8,888 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 $6,589 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
598 standardized 30-day fills in 2024
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
$2,926 in 2024
The total cost of these prescriptions in 2024, 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, 2024.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019–2025.
Years since graduation
48 years (graduated 1978)
CMS Doctors and Clinicians data list 1978 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
2005
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. Chase 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. Chase 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
Fewer Medicare Part B services than 90% of 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 85% 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
A lower Medicare-allowed amount than 90% of 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.
A lower Medicare-allowed amount than 85% of 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
A lower Medicare payment amount than 90% of 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.
A lower Medicare payment amount than 85% of 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 prescriptions
Close to the middle for clinicians listed under Internal Medicine in Worcester, MA (2024, 205 clinicians with data). Median for this group: 319. Middle half: 61 to 3,185.
Fewer Part D prescriptions than 65% of clinicians listed under Internal Medicine in Massachusetts (2024, 3,672 clinicians with data). Median for this group: 1,174. Middle half: 129 to 3,740.
Part D drug cost
A lower Part D drug cost than 70% of clinicians listed under Internal Medicine in Worcester, MA (2024, 205 clinicians with data). Median for this group: $40,855. Middle half: $1,827 to $224,930.
A lower Part D drug cost than 80% of clinicians listed under Internal Medicine in Massachusetts (2024, 3,672 clinicians with data). Median for this group: $103,819. Middle half: $9,088 to $319,703.
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 86% from 609 in 2020 to 85 in 2024.
- 2020: 609
- 2021: 517
- 2022: 491
- 2023: 191
- 2024: 85
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Medicare-allowed amount
Medicare-allowed amount decreased 81% from $48,035 in 2020 to $8,888 in 2024.
- 2020: $48,035
- 2021: $35,992
- 2022: $36,729
- 2023: $17,834
- 2024: $8,888
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Paid by Medicare
Paid by Medicare decreased 80% from $32,273 in 2020 to $6,589 in 2024.
- 2020: $32,273
- 2021: $20,650
- 2022: $20,576
- 2023: $8,009
- 2024: $6,589
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 94% from 3,910 in 2020 to 226 in 2024.
- 2020: 3,910
- 2021: 4,045
- 2022: 3,937
- 2023: 2,634
- 2024: 226
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30-day fills
30-day fills decreased 93% from 8,007 in 2020 to 598 in 2024.
- 2020: 8,007
- 2021: 8,588
- 2022: 8,605
- 2023: 6,255
- 2024: 598
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Part D drug cost
Part D drug cost decreased 99% from $285,512 in 2020 to $2,926 in 2024.
- 2020: $285,512
- 2021: $331,542
- 2022: $305,280
- 2023: $171,402
- 2024: $2,926
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), 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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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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54 | 52 | $300.00 | $92.16 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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31 | 28 | $445.00 | $126.18 |
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 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 49 | 4,170 | $696.82 | 32 |
| Losartan Potassium | Losartan Potassium | 32 | 2,640 | $290.88 | 20 |
| Levothyroxine Sodium | Levothyroxine Sodium | 23 | 2,080 | $144.85 | 14 |
| Lisinopril | Lisinopril | 20 | 1,680 | $174.92 | 13 |
| Omeprazole | Omeprazole | 18 | 1,237 | $595.16 | 12 |
| Metformin Hcl | Metformin Hcl | 17 | 1,284 | $133.54 | 11 |
| Amlodipine Besylate | Amlodipine Besylate | 15 | 1,170 | $91.92 | 13 |
| Fluoxetine Hcl | Fluoxetine Hcl | 14 | 720 | $119.56 | — |
| Hydrochlorothiazide | Hydrochlorothiazide | 13 | 1,170 | $22.51 | — |
| Pravastatin Sodium | Pravastatin Sodium | 13 | 1,170 | $621.14 | — |
| Sertraline Hcl | Sertraline Hcl | 12 | 600 | $34.55 | — |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2024-01-31NUCC 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 - INTERNAL MEDICINE
I20050405001045
MA
2668429390
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
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.)
Family Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Family Medicine
Doctor of Medicine (M.D.)
Family Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner
Nurse Practitioner
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 367 PLANTATION ST, WORCESTER, MA 016052323 (Tel: 5083341443)
NPI status registered as active in NPPES database
Registered at 103 MILLBURY ST, AUBURN, MA 015013205 (Tel: 5087214000)
Registered at PO BOX 415348, BOSTON, MA 022415348
Recorded as GERALD CHASE, M.D.
Internal Medicine (license number reported to NPPES: MA 56185)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Worcester
- Dr. Ronald Cruz, MD
- Dr. Edward Adams, MD
- Dr. George Abraham, MD
- Dr. Mark Schrank, MD
- Dr. Shanil Shah, MD
- Dr. Diana Suris, DO
Mailing Address
Po Box 415348
Boston, MA 022415348