Dr. Eric Brandt Einstein , MD
Internal Medicine • Norwalk, CT
120 Connecticut Avenue, Adult Medicine-Nchc
Norwalk, CT 06854
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. Eric Einstein is listed in NPPES under Internal Medicine.
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NPI assigned on June 15, 2006; this date does not establish years in practice.
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Published CMS data list 43 Medicare Part D prescriptions, including refills, in 2021.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2021. Published rows only; this is not a quality measure.
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Published Part D records, 2021:
- Atorvastatin Calcium — 20 prescription fills, including refills.
- Metformin Hcl — 12 prescription fills, including refills.
- Albuterol Sulfate Hfa (Albuterol Sulfate) — 11 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2021. 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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Medicare Part D prescriptions went from 642 in 2017 to 43 in 2021.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2017–2021.
Practice Location & Contact Primary Location
120 Connecticut Avenue
Adult Medicine-Nchc
Norwalk, CT 06854
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Redding, CT. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
73 standardized 30-day fills in 2021
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
$593 in 2021
The total cost of these prescriptions in 2021, 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, 2021.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019–2025.
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.
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.
Compared with the same specialty in Norwalk and Connecticut
Billing and prescribing volume is not a quality rating.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Einstein are from 2021.
79 active clinicians are listed under Internal Medicine with a practice address in Norwalk, CT (2,625 in Connecticut).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Norwalk
24.1% of these 79 clinicians have the CMS telehealth indicator.
72.2% of these 79 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 D prescriptions
Medicare Part D prescriptions decreased 93% from 642 in 2017 to 43 in 2021.
- 2017: 642
- 2018: 407
- 2019: 394
- 2020: 452
- 2021: 43
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30-day fills
30-day fills decreased 93% from 1,089 in 2017 to 73 in 2021.
- 2017: 1,089
- 2018: 765
- 2019: 759
- 2020: 864
- 2021: 73
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Part D drug cost
Part D drug cost decreased 96% from $14,102 in 2017 to $593 in 2021.
- 2017: $14,102
- 2018: $16,421
- 2019: $14,749
- 2020: $5,423
- 2021: $593
Sources: CMS Medicare Part D Prescribers (2021), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2021.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 20 | 900 | $151.70 | — |
| Metformin Hcl | Metformin Hcl | 12 | 960 | $94.10 | — |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 11 | 292 | $347.36 | — |
Source: CMS Part D by Provider and Drug, 2021; 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
Secondary Practice Locations
73 Redding Rd
Redding, CT 068963210
Phone: 2035449517
73 Redding Rd
Redding, CT 068963210
Phone: 2035449517
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.)
Nurse Practitioner - Family
Family Nurse Practitioner (Board Certified)
Internal Medicine
Doctor of Medicine (M.D.)
Obstetrics & Gynecology - Obstetrics
Doctor of Medicine (M.D.)
Nurse Practitioner - Adult Health
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 120 CONNECTICUT AVENUE, ADULT MEDICINE-NCHC, NORWALK, CT 06854 (Tel: 2038991770)
Registered at 120 CONNECTICUT AVENUE, ADULT MEDICINE-NCHC, NORWALK, CT 06854 (Tel: 2038991770)
Registered at 120 CONNECTICUT AVENUE, ADULT MEDICINE-NCHC, NORWALK, CT 06854 (Tel: 2038991770)
NPI status registered as active in NPPES database
Registered at 73 REDDING RD, REDDING, CT 068963210 (Tel: 2035449517)
Registered at PO BOX 270, GEORGETOWN, CT 068290270 (Tel: 2035449517)
Recorded as ERIC EINSTEIN, M.D.
Internal Medicine (license number reported to NPPES: CT 23682)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Norwalk
- Dr. Jan Slupski, MD
- Dr. Raman Gill-Meyer, MD
- Dr. Zhou Li, MBBS
- Dr. Stephen O'mahony, MD
- Dr. Paul Kelly, DO
- Dr. Anjum Khan, MD
Mailing Address
120 Connecticut Avenue, Adult Medicine-Nchc
Norwalk, CT 06854
Phone: 2038991770