Dr. Joseph Brian Sullivan , MD
Internal Medicine • Wareham, MA
261 Main St Ste B
Wareham, MA 025712111
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. Joseph Sullivan is listed in NPPES under Internal Medicine.
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NPI assigned on September 22, 2005; this date does not establish years in practice.
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Published CMS data list 106 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:
- 99231 — Subsequent hospital care with straightforward or low level of medical decision making, per day: 106 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 490 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:
- Buprenorphine-Naloxone (Buprenorphine Hcl/Naloxone Hcl) — 79 prescription fills, including refills.
- Buprenorphine Hcl — 48 prescription fills, including refills.
- Omeprazole — 45 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 21 records in the table · Guide: How to read Medicare Part D prescriber data
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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 124 in 2020 to 106 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
261 Main St Ste B
Wareham, MA 025712111
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
23 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 $5,181 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 $3,971 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
490 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
$30,206 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.
Open Payments general payments, program year 2025
All general payments: $213.65 across 2 records.
By nature of payment
- Food and Beverage: $213.65 across 2 records.
Reporting-company totals
- Neurocrine BioSciences, Inc.: $108.37 across 1 record.
- Alkermes, Inc.: $105.28 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.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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. Sullivan 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. Sullivan 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 Wareham and Massachusetts
Billing and prescribing volume is not a quality rating.
Medicare Part B services
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.
Too few clinicians listed under Internal Medicine in Wareham have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A lower Medicare-allowed amount than 90% 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.
Too few clinicians listed under Internal Medicine in Wareham have Medicare Part B data for 2024 to compare.
Paid by Medicare
A lower Medicare payment amount than 90% 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.
Too few clinicians listed under Internal Medicine in Wareham have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
Fewer Part D prescriptions than 60% 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.
Too few clinicians listed under Internal Medicine in Wareham have Medicare Part D data for 2024 to compare.
Part D drug cost
A lower Part D drug cost than 60% 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.
Too few clinicians listed under Internal Medicine in Wareham have Medicare Part D data for 2024 to compare.
11 active clinicians are listed under Internal Medicine with a practice address in Wareham, MA (6,830 in Massachusetts).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Wareham
54.5% of these 11 clinicians have the CMS telehealth indicator.
54.5% of these 11 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 15% from 124 in 2020 to 106 in 2024.
- 2020: 124
- 2021: 62
- 2022: 75
- 2023: 53
- 2024: 106
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Medicare-allowed amount
Medicare-allowed amount decreased 13% from $5,938 in 2020 to $5,181 in 2024.
- 2020: $5,938
- 2021: $2,443
- 2022: $2,946
- 2023: $2,654
- 2024: $5,181
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Paid by Medicare
Paid by Medicare decreased 16% from $4,715 in 2020 to $3,971 in 2024.
- 2020: $4,715
- 2021: $1,955
- 2022: $2,186
- 2023: $1,646
- 2024: $3,971
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 137% from 207 in 2020 to 490 in 2024.
- 2020: 207
- 2021: 624
- 2022: 460
- 2023: 450
- 2024: 490
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30-day fills
30-day fills increased 134% from 209 in 2020 to 490 in 2024.
- 2020: 209
- 2021: 658
- 2022: 480
- 2023: 482
- 2024: 490
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Part D drug cost
Part D drug cost varied from year to year: $29,148 in 2020 and $30,206 in 2024.
- 2020: $29,148
- 2021: $58,700
- 2022: $55,087
- 2023: $43,885
- 2024: $30,206
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2025 only.
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (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 · 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
Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $213.65.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Neurocrine BioSciences, Inc. |
Food and Beverage
In-kind items and services
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INGREZZA | General | $108.37 |
| Alkermes, Inc. |
Food and Beverage
In-kind items and services
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LYBALVI | General | $105.28 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
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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99231
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes
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106 | 22 | $162.00 | $48.88 |
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 |
|---|---|---|---|---|---|
| Buprenorphine-Naloxone | Buprenorphine Hcl/Naloxone Hcl | 79 | 2,083 | $9,339.40 | 13 |
| Buprenorphine Hcl | Buprenorphine Hcl | 48 | 1,372 | $2,151.65 | — |
| Omeprazole | Omeprazole | 45 | 1,134 | $473.26 | — |
| Atorvastatin Calcium | Atorvastatin Calcium | 43 | 890 | $629.04 | — |
| Gabapentin | Gabapentin | 30 | 818 | $207.55 | — |
| Famotidine | Famotidine | 27 | 648 | $275.95 | — |
| Lorazepam | Lorazepam | 25 | 523 | $403.86 | — |
| Diazepam | Diazepam | 22 | 474 | $152.31 | — |
| Clonazepam | Clonazepam | 16 | 417 | $70.66 | — |
| Tamsulosin Hcl | Tamsulosin Hcl | 16 | 295 | $191.90 | — |
| Amlodipine Besylate | Amlodipine Besylate | 15 | 395 | $111.07 | — |
| Ibuprofen | Ibuprofen | 14 | 51 | $69.51 | — |
| Lantus | Insulin Glargine,hum.Rec.Anlog | 14 | 292 | $1,012.03 | — |
| Aripiprazole | Aripiprazole | 14 | 259 | $368.25 | — |
| Levothyroxine Sodium | Levothyroxine Sodium | 12 | 275 | $178.71 | — |
| Metformin Hcl | Metformin Hcl | 12 | 302 | $113.47 | — |
| Metoprolol Succinate | Metoprolol Succinate | 12 | 254 | $322.90 | — |
| Methadone Hcl | Methadone Hcl | 12 | 335 | $363.86 | — |
| Trulicity | Dulaglutide | 12 | 249 | $11,662.73 | — |
| Xarelto | Rivaroxaban | 11 | 100 | $2,047.38 | — |
| Escitalopram Oxalate | Escitalopram Oxalate | 11 | 330 | $60.98 | — |
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: 2025-04-30NUCC 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
I20050426001188
MA
5294774568
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 261 MAIN ST STE B, WAREHAM, MA 025712111 (Tel: 5082957174)
Registered at 261 MAIN ST UNIT B, WAREHAM, MA 025712111 (Tel: 5082957174)
NPI status registered as active in NPPES database
Registered at 620 WASHINGTON ST, SUITE A, FRANKLIN, MA 020383300 (Tel: 5085539145)
Registered at 82 BEACH ST, PO BOX 923, WRENTHAM, MA 020931560 (Tel: 5083848748)
Recorded as JOSEPH SULLIVAN, MD
Internal Medicine (license number reported to NPPES: MA 73361)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Wareham
- Dr. Randy Caplan, DO
- Dr. Kevin Delahanty, MD
- Dr. Zachary Zanfes, DO
- Dr. Sirjana Dhungana Parajuli, MD
- Dr. Thomas Geagan, MD
- Daniel Miller
Mailing Address
261 Main St Unit B
Wareham, MA 025712111
Phone: 5082957174