Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Dr. Michael C Rubinstein , MD

Internal Medicine • Clinton, CT

Active NPI 1083702633 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

8 East Main Street
Clinton, CT 06413

Call 8606690719 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

8 East Main Street

Clinton, CT 06413

Telephone 8606690719
Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Northeast 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

1989

Medicare patients

476 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 – by Provider, 2024.

Medicare-allowed amount

About $186,108 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 – by Provider and Service, 2024.

Paid by Medicare

About $153,496 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 – by Provider and Service, 2024.

30-day fills

27,812 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

$995,694 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

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: $32.85 across 2 records.

By nature of payment

  • Food and Beverage: $32.85 across 2 records.

Reporting-company totals

  • Abbott Laboratories: $19.19 across 1 record.
  • Bristol Myers Squibb Company: $13.66 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

37 years (graduated 1989)

CMS Doctors and Clinicians data list 1989 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

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.

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?”

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. Rubinstein 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. Rubinstein 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 Clinton and Connecticut

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 90% of clinicians listed under Internal Medicine in Connecticut (2024, 1,500 clinicians with data). Median for this group: 498. Middle half: 204 to 901.

Too few clinicians listed under Internal Medicine in Clinton have Medicare Part B data for 2024 to compare.

Medicare-allowed amount

A higher Medicare-allowed amount than 95% of clinicians listed under Internal Medicine in Connecticut (2024, 1,500 clinicians with data). Median for this group: $50,793. Middle half: $22,001 to $86,184.

Too few clinicians listed under Internal Medicine in Clinton have Medicare Part B data for 2024 to compare.

Paid by Medicare

A higher Medicare payment amount than 95% of clinicians listed under Internal Medicine in Connecticut (2024, 1,500 clinicians with data). Median for this group: $39,329. Middle half: $16,463 to $67,151.

Too few clinicians listed under Internal Medicine in Clinton have Medicare Part B data for 2024 to compare.

Medicare Part D prescriptions

More Part D prescriptions than 95% of clinicians listed under Internal Medicine in Connecticut (2024, 1,571 clinicians with data). Median for this group: 1,218. Middle half: 98 to 4,433.

Too few clinicians listed under Internal Medicine in Clinton have Medicare Part D data for 2024 to compare.

Part D drug cost

A higher Part D drug cost than 90% of clinicians listed under Internal Medicine in Connecticut (2024, 1,571 clinicians with data). Median for this group: $91,415. Middle half: $3,967 to $384,333.

Too few clinicians listed under Internal Medicine in Clinton have Medicare Part D data for 2024 to compare.

2 active clinicians are listed under Internal Medicine with a practice address in Clinton, CT (2,625 in Connecticut).

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

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

Open Payments · Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $32.85.

Manufacturer Payment Nature Product Type Amount ($)
Abbott Laboratories
Food and Beverage
In-kind items and services
FREESTYLE LIBRE 3 General $19.19
Bristol Myers Squibb Company
Food and Beverage
Cash or cash equivalent
ELIQUIS General $13.66

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 · Data Year 2024
Reporting Year:

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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
646 415 $268.00 $138.84
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
361 361 $400.00 $142.73
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
211 173 $51.00 $17.60
G0008 Administration of influenza virus vaccine
152 150 $51.00 $33.90
90653 Influenza vaccine, inactivated
145 145 $86.00 $81.82
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
85 84 $90.00 $15.65
90480 Admn sarscov2 vacc 1 dose
23 21 $120.00 $45.20
91322 Sarscov2 vac 50 mcg/0.5ml im
23 21 $438.00 $157.08
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional
22 16 $51.00 $25.65
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
20 19 $182.00 $98.88
G0009 Administration of pneumococcal vaccine
18 18 $49.89 $33.70
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit
17 17 $600.00 $180.78
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use
16 16 $422.56 $290.93
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment
16 16 $403.00 $181.84
99495 Transitional care management services for problem of at least moderate complexity
15 14 $541.00 $225.35
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and
15 14 $141.00 $58.62
83036 Hemoglobin a1c level
14 13 $23.00 $9.52

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.

CMS Part D · Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Rosuvastatin Calcium Rosuvastatin Calcium 1,111 97,254 $15,443.14 313
Atorvastatin Calcium Atorvastatin Calcium 755 63,525 $7,127.03 209
Amlodipine Besylate Amlodipine Besylate 597 49,930 $3,667.70 174
Levothyroxine Sodium Levothyroxine Sodium 588 49,379 $6,683.54 153
Losartan Potassium Losartan Potassium 376 32,182 $4,145.23 110
Ezetimibe Ezetimibe 331 28,090 $7,619.80 93
Pantoprazole Sodium Pantoprazole Sodium 281 22,338 $3,594.31 86
Zolpidem Tartrate Zolpidem Tartrate 252 9,276 $2,015.03 50
Escitalopram Oxalate Escitalopram Oxalate 243 16,722 $2,429.69 57
Lisinopril Lisinopril 242 21,146 $1,642.03 69
Metoprolol Succinate Metoprolol Succinate 237 19,905 $2,891.53 67
Eliquis Apixaban 223 10,322 $199,144.38 42
Allopurinol Allopurinol 209 16,079 $1,908.99 48
Metformin Hcl Er Metformin Hcl 206 17,820 $2,761.34 61
Alprazolam Alprazolam 203 7,076 $1,200.22 56
Tamsulosin Hcl Tamsulosin Hcl 194 16,266 $2,601.93 61
Hydrochlorothiazide Hydrochlorothiazide 173 13,807 $664.71 49
Pravastatin Sodium Pravastatin Sodium 170 14,402 $2,313.14 44
Valsartan Valsartan 162 12,894 $3,682.86 48
Omeprazole Omeprazole 154 13,080 $2,183.81 43
Albuterol Sulfate Hfa Albuterol Sulfate 148 3,987 $2,664.29 47
Lorazepam Lorazepam 128 4,412 $298.52 21
Fluticasone Propionate Fluticasone Propionate 115 6,368 $1,007.37 32
Irbesartan Irbesartan 114 10,016 $4,199.48 29
Glimepiride Glimepiride 107 9,391 $920.40 29

(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

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

License # reported to NPPES CT 031728

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.

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: Connecticut Department of Public Health Verification.
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 - INTERNAL MEDICINE

Medicare Enrollment ID

I20110304000008

Enrollment State Jurisdiction

CT

PECOS Control ID

7113021338

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

Northeast Medical Group Inc

5 Pequot Park Rd, Westbrook, CT 064982856

Phone: 8603996167

Clinicians Sharing This Practice Address or Phone

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

1 listed
Dr. Zadie Kenkare , MD

Internal Medicine

NPI 1033281977

Doctor of Medicine (M.D.)

Career & Practice History

NPI enumerated October 10, 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.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1083702633
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: October 10, 2006
Last Update: July 08, 2007
Sole Proprietor: Yes

Mailing Address

390 Summer Hill Road

Madison, CT 06443

Phone: 2034215550

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.