Dr. Amy Sarah Pasternack, MD

  • Cambridge, MA
  • Internist
NPI1922369412PAC ID8921318700
Medicare services, 2024
148
Medicare patients, 2024
65
Part D claims, 2024
3,054
Hospital affiliations
2
Industry payments
$1,610
Practice address
1493 Cambridge Street, Cambridge, MA 02139
Practice phone
Call (617) 665-1000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

CHA Cambridge Hospital

Hospital · Cambridge, Massachusetts

See all 3 affiliations

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Dr. Amy Sarah Pasternack is an internist in Cambridge, Massachusetts

Dr. Pasternack practices at CHA Cambridge Hospital in Cambridge, Massachusetts, part of Cambridge Health Alliance.

Dr. Pasternack's NPI, 1922369412, was assigned on May 31, 2012. Dr. Pasternack graduated from Harvard Medical School in 2012. Dr. Pasternack holds Massachusetts license 261883.

NPI and contact details
Medicare PAC ID
8921318700
NPI enumeration date
May 31, 2012
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(617) 665-1000
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
40
Medical school graduation
2012

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Amy Sarah Pasternack practices at CHA Cambridge Hospital in Cambridge, Massachusetts

Dr. Pasternack's primary practice is CHA Cambridge Hospital, at 1493 Cambridge Street, Cambridge, MA 02139 in Middlesex County. The practice phone is (617) 665-1000.

Source: Dmand AI Affiliation Data

Dr. Amy Sarah Pasternack is affiliated with 2 sites of care and 1 medical group

Dr. Pasternack's primary practice is CHA Cambridge Hospital in Cambridge, Massachusetts, part of Cambridge Health Alliance. Dr. Pasternack is also affiliated with Mount Auburn Hospital. The medical group on file is Cambridge Health Alliance. Dr. Pasternack's employer is on file too: a hospital.

See all 3 affiliations for Dr. Pasternack

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Amy Sarah Pasternack's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Pasternack practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
CHA Cambridge HospitalAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Amy Sarah Pasternack is one of 5,528 internists in Massachusetts

Internal medicine is Dr. Pasternack's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Pasternack is licensed in Massachusetts.

Specialties and state licenses

  • Internal medicine, MassachusettsPrimaryLicense 261883 · taxonomy 207R00000X

Internists near Dr. Pasternack

Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Amy Sarah Pasternack billed Medicare for 148 services in 2024

CMS data shows 148 Medicare services from Dr. Pasternack across 4 procedure codes in 2024, for 65 Medicare patients. Medicare paid $6,508 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024148
Medicare patients65
Paid by Medicare$6,508
Procedure codes4

Dr. Pasternack's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 672024: 12485%
Other services
2023: 02024: 24

Dr. Pasternack compared with the Massachusetts median for internists, 2024

  • Dr. Pasternack
  • Massachusetts median
Medicare services
148vs 43166% below
Medicare patients
65vs 19466% below
Part D claims
2,582vs 4026.4 times

Medians across 5,369 internists in Massachusetts with Dmand AI profiles that report each measure.

Dr. Pasternack's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Pasternack

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Amy Sarah Pasternack treated 65 Medicare patients in 2024, average age 68

CMS counts 65 Medicare patients who saw Dr. Pasternack in 2024. The largest group is 65 to 74, with 38 patients. 62% of them have high blood pressure, and 45% have diabetes. 78% are also on Medicaid. Their average risk score is 1.06, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Pasternack's median patient age at 52, with 73% women.

Medicare patients, 202465
Average age68
Average risk score1.06
Also on Medicaid78%

Dr. Pasternack's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Pasternack's Medicare patients by sex, 2024

  • Women4874%
  • Men1726%

Chronic conditions among Dr. Pasternack's Medicare patients, 2024

  1. High blood pressure62%
  2. Diabetes45%
  3. High cholesterol37%
  4. Mood disorders35%
  5. Arthritis29%
  6. Anxiety28%
  7. Depression28%
  8. Chronic kidney disease23%

Share of Medicare patients with each condition. A patient can have several.

Dr. Pasternack's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 52

Patient panel by sex, all payers

  • Women73%
  • Men26%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Amy Sarah Pasternack wrote 3,054 Medicare Part D claims in 2024

In 2024, Dr. Pasternack wrote 3,054 Medicare Part D claims for 180 patients. 79% of them were for generic drugs. CMS names the drug for 2,582 of them, across 77 drugs with 11 or more claims each, at $346,610 in total drug cost. In 2023, CMS named 2,384 claims across 73 drugs.

Part D claims, 20243,054
Drugs named by CMS77
Total drug cost$346,610
Part D patients180

Dr. Pasternack's Part D claims by kind of drug, 2024

  • Generic2,422 claims79%
  • Brand-name579 claims19%
  • Other53 claims2%

Dr. Pasternack's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Pasternack's Part D claims, 2024

  • Opioids2%64 of 3,054 claims
  • Antibiotics0%11 of 3,054 claims
  • Antipsychotics, patients 65 and over1%24 of 3,054 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 2,3842024: 2,5828%

Drugs named by CMS: 77 in 2024, 73 in 2023.

See all prescribing by Dr. Pasternack

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Amy Sarah Pasternack offers telehealth to Medicare patients

Dr. Pasternack accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Pasternack as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Amy Sarah Pasternack received $1,610 in industry payments from 2018 to 2022

CMS Open Payments shows 6 general payments to Dr. Pasternack from 1 drug or device company from 2018 to 2022. Speaker and faculty fees make up the largest share, 94% of the total. Biogen, Inc. paid the most, $1,610.

General payments to Dr. Pasternack by program year, 2018 to 2022

General payments to Dr. Pasternack by kind, 2018 to 2022

$1.6Kin total
  • Speaker and faculty fees$1,52094%
  • Food and beverage$906%

Companies that paid Dr. Pasternack the most, 2018 to 2022

Share is of all general payments to this clinician.

See all payments to Dr. Pasternack

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Amy Sarah Pasternack graduated from Harvard Medical School

Dr. Pasternack graduated from Harvard Medical School in 2012.

  1. Medical schoolHarvard Medical School

Source: Dmand AI Professional Profile Data

Sources for Dr. Amy Sarah Pasternack's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Amy Sarah Pasternack

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Amy Sarah Pasternack's NPI number?

Dr. Amy Sarah Pasternack's NPI number is 1922369412. It was assigned on May 31, 2012, and it is active in the NPI Registry.

What kind of doctor is Dr. Amy Sarah Pasternack?

Dr. Amy Sarah Pasternack is an internist in Cambridge, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Amy Sarah Pasternack practice?

Dr. Pasternack practices at 1493 Cambridge Street, Cambridge, MA 02139. Dr. Pasternack's primary practice is CHA Cambridge Hospital in Cambridge, Massachusetts, part of Cambridge Health Alliance.

What is Dr. Amy Sarah Pasternack's office phone number?

The practice phone on file for Dr. Pasternack is (617) 665-1000.

What is Dr. Amy Sarah Pasternack's medical license number?

Dr. Pasternack holds Massachusetts license 261883.

Which hospitals is Dr. Amy Sarah Pasternack affiliated with?

Dr. Pasternack practices at CHA Cambridge Hospital in Cambridge, Massachusetts. Dr. Pasternack is also affiliated with Mount Auburn Hospital.

What medical group is Dr. Amy Sarah Pasternack part of?

Dr. Pasternack is linked to Cambridge Health Alliance.

Does Dr. Amy Sarah Pasternack accept Medicare?

Yes. CMS data shows Dr. Pasternack billed Medicare for 148 services in 2024, and Dr. Pasternack accepts Medicare assignment.

Does Dr. Amy Sarah Pasternack offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Pasternack as offering telehealth services.

How many Medicare patients does Dr. Amy Sarah Pasternack see?

CMS counts 65 Medicare patients who saw Dr. Pasternack in 2024, with an average age of 68.

Show 5 more questionsShow fewer questions

What services does Dr. Amy Sarah Pasternack bill to Medicare?

In 2024, Dr. Pasternack's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and medicare service (G2211).

Where did Dr. Amy Sarah Pasternack go to medical school?

Dr. Pasternack graduated from Harvard Medical School in 2012.

What drugs does Dr. Amy Sarah Pasternack prescribe most?

In 2024 Medicare Part D data, Dr. Pasternack's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Trulicity.

Has Dr. Amy Sarah Pasternack received payments from drug or device companies?

CMS Open Payments shows $1,610 in general payments to Dr. Pasternack from 1 company from 2018 to 2022. The largest total came from Biogen, Inc.

How long has Dr. Amy Sarah Pasternack been practicing?

Dr. Pasternack graduated from medical school in 2012, 14 years ago.

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