Dr. Jay J Isaac , MD
Internal Medicine • Gloucester, MA
1 Blackburn Dr
Gloucester, MA 019302237
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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NPI assigned on May 24, 2006; this date does not establish years in practice.
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Published CMS data list 1,002 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:
- 99215 — Established patient outpatient office visit: 252 service units.
- 99213 — Established patient outpatient office visit: 152 service units.
- 96372 — Injection of drug or substance under skin or into muscle: 104 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 10 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 1,563 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:
- Rosuvastatin Calcium — 112 prescription fills, including refills.
- Pantoprazole Sodium — 76 prescription fills, including refills.
- Lisinopril — 65 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 58 records in the table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 70% 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 1,162 in 2020 to 1,002 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
1 Blackburn Dr
Gloucester, MA 019302237
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
New York Medical College
1996
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
179 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 $105,586 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 $83,059 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
2,883 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
$99,501 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)
Fewer than 11 payment records totaling $36.92 in 2024
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2024.
Years since graduation
30 years (graduated 1996)
CMS Doctors and Clinicians data list 1996 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
2006
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?”
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Isaac 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. Isaac 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 Gloucester and Massachusetts
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 70% 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 Gloucester have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A higher Medicare-allowed amount than 75% 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 Gloucester have Medicare Part B data for 2024 to compare.
Paid by Medicare
A higher Medicare payment amount than 75% 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 Gloucester have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
Close to the middle for 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 Gloucester have Medicare Part D data for 2024 to compare.
Part D drug cost
Close to the middle for 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 Gloucester have Medicare Part D data for 2024 to compare.
11 active clinicians are listed under Internal Medicine with a practice address in Gloucester, MA (6,830 in Massachusetts).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Gloucester
63.6% of these 11 clinicians have the CMS telehealth indicator.
63.6% 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 14% from 1,162 in 2020 to 1,002 in 2024.
- 2020: 1,162
- 2021: 1,018
- 2022: 1,111
- 2023: 1,093
- 2024: 1,002
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Medicare-allowed amount
Medicare-allowed amount stayed about the same: $105,830 in 2020 and $105,586 in 2024.
- 2020: $105,830
- 2021: $120,514
- 2022: $118,405
- 2023: $101,214
- 2024: $105,586
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Paid by Medicare
Paid by Medicare increased 11% from $75,124 in 2020 to $83,059 in 2024.
- 2020: $75,124
- 2021: $92,756
- 2022: $91,930
- 2023: $79,241
- 2024: $83,059
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 27% from 1,226 in 2020 to 1,563 in 2024.
- 2020: 1,226
- 2021: 1,428
- 2022: 1,776
- 2023: 1,721
- 2024: 1,563
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30-day fills
30-day fills increased 19% from 2,425 in 2020 to 2,883 in 2024.
- 2020: 2,425
- 2021: 2,787
- 2022: 3,631
- 2023: 3,060
- 2024: 2,883
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Part D drug cost
Part D drug cost increased 76% from $56,476 in 2020 to $99,501 in 2024.
- 2020: $56,476
- 2021: $73,276
- 2022: $141,935
- 2023: $140,600
- 2024: $99,501
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $11.88 in 2019 to $36.92 in 2024.
- 2019: $11.88
- 2023: $32.66
- 2024: $36.92
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2024), 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 2024 (payments made January 1 – December 31, 2024): fewer than 11 records totaling $36.92.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Baxter Healthcare |
Food and Beverage
In-kind items and services
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Hillrom - Carnation Ambulatory Monitor | General | $36.92 |
Source: CMS Open Payments, program year 2024, 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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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
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252 | 119 | $400.00 | $185.54 |
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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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152 | 89 | $200.00 | $93.70 |
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96372
Injection of drug or substance under skin or into muscle
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104 | 12 | $60.00 | $14.87 |
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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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102 | 80 | $310.00 | $132.27 |
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99497
Advance care planning, first 30 minutes
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94 | 93 | $200.00 | $84.07 |
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G0442
Annual alcohol misuse screening, 5 to 15 minutes
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92 | 92 | $60.00 | $19.84 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
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90 | 90 | $220.00 | $134.56 |
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G0444
Annual depression screening, 5 to 15 minutes
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89 | 89 | $75.00 | $19.84 |
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99205
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more
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15 | 15 | $500.00 | $225.43 |
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99495
Transitional care management services for problem of at least moderate complexity
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12 | 12 | $350.00 | $213.71 |
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 |
|---|---|---|---|---|---|
| Rosuvastatin Calcium | Rosuvastatin Calcium | 112 | 6,435 | $1,937.25 | 27 |
| Pantoprazole Sodium | Pantoprazole Sodium | 76 | 1,684 | $492.92 | — |
| Lisinopril | Lisinopril | 65 | 4,681 | $405.06 | 19 |
| Amlodipine Besylate | Amlodipine Besylate | 65 | 5,604 | $587.09 | 19 |
| Atorvastatin Calcium | Atorvastatin Calcium | 63 | 5,670 | $1,107.99 | 20 |
| Gabapentin | Gabapentin | 61 | 1,393 | $440.63 | — |
| Sodium Chloride | 0.9 % Sodium Chloride | 56 | 113 | $293.37 | — |
| Losartan Potassium | Losartan Potassium | 55 | 3,691 | $714.51 | 13 |
| Simvastatin | Simvastatin | 49 | 3,482 | $471.66 | 12 |
| Omeprazole | Omeprazole | 46 | 2,921 | $796.50 | 16 |
| Sertraline Hcl | Sertraline Hcl | 43 | 1,634 | $287.22 | — |
| Trazodone Hcl | Trazodone Hcl | 43 | 2,642 | $442.88 | 12 |
| Montelukast Sodium | Montelukast Sodium | 42 | 1,999 | $368.68 | — |
| Ipratropium Bromide | Ipratropium Bromide | 33 | 1,207 | $957.15 | 13 |
| Aripiprazole | Aripiprazole | 33 | 377 | $128.57 | — |
| Prednisone | Prednisone | 31 | 327 | $73.66 | 26 |
| Tamsulosin Hcl | Tamsulosin Hcl | 30 | 2,024 | $326.01 | — |
| Levothyroxine Sodium | Levothyroxine Sodium | 29 | 2,490 | $365.05 | — |
| Atenolol | Atenolol | 26 | 2,100 | $450.70 | — |
| Citalopram Hbr | Citalopram Hydrobromide | 26 | 1,800 | $54.13 | — |
| Escitalopram Oxalate | Escitalopram Oxalate | 26 | 1,487 | $145.55 | — |
| Eliquis | Apixaban | 26 | 1,080 | $20,505.14 | — |
| Ozempic | Semaglutide | 25 | 700 | $23,609.90 | — |
| Valsartan | Valsartan | 21 | 1,530 | $1,215.63 | — |
| Jardiance | Empagliflozin | 21 | 1,050 | $20,087.07 | — |
(top 25 shown)
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
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 - INTERNAL MEDICINE
I20091007000014
MA
5294748075
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner - Adult Health
Nurse Practitioner
Nurse Practitioner - Family
Family Nurse Practitioner (Board Certified)
Internal Medicine
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated May 24, 2006.
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 Gloucester
- Dr. Shawn Pawson, MD
- Dr. Nathalie Celestin, MD
- Dr. James Maguire, MD
- Dr. Candace Thompson, DO
- Dr. Victor Carabba, MD
- Dr. Zaven Jouhourian, MD
Mailing Address
1 Blackburn Dr
Gloucester, MA 019302237
Phone: 9782823698