Dr. Andrea A. Peterson, MD

  • Torrington, CT
  • Internist
NPI1245200187
Medicare services, 2017
27
Part D claims, 2024
137
Hospital affiliations
1
Medical groups
2
State license
1
Practice address
540 Litchfield St, Torrington, CT 06790
Practice phone
Call (860) 496-6666
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Charlotte Hungerford Hospital

Torrington, Connecticut

See all 4 affiliations

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Dr. Andrea A. Peterson is an internist in Torrington, Connecticut

Dr. Peterson practices at Charlotte Hungerford Hospital in Torrington, Connecticut.

Dr. Peterson's NPI, 1245200187, was assigned on January 24, 2006. Dr. Peterson graduated from University of Colorado School of Medicine in 1997. Dr. Peterson holds Connecticut license 040602.

NPI and contact details
NPI enumeration date
January 24, 2006
NPI status
Active
Practice phone
(860) 496-6666
Professional email
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Personal email
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Mobile number
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Sex
Female
Medical school graduation
1997

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

Dr. Andrea A. Peterson practices at Charlotte Hungerford Hospital in Torrington, Connecticut

Dr. Peterson's primary practice is Charlotte Hungerford Hospital, at 540 Litchfield St, Torrington, CT 06790 in Nw Hills County. The practice phone is (860) 496-6666.

  • Charlotte Hungerford Hospital
    540 Litchfield St, Torrington, CT 06790 · Nw Hills CountyPhone(860) 496-6666

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Andrea A. Peterson is affiliated with 2 sites of care and 2 medical groups

Dr. Peterson's primary practice is Charlotte Hungerford Hospital in Torrington, Connecticut. Dr. Peterson is also affiliated with Norwalk Hospital. The medical group on file is Hartford HealthCare Medical Group Specialists. Dmand AI also links Dr. Peterson to 1 more medical group, named with a free account.

See all 4 affiliations for Dr. Peterson

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Andrea A. Peterson's practice

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

EHR by site
SiteEHR vendor and product
Charlotte Hungerford HospitalAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Andrea A. Peterson is one of 2,189 internists in Connecticut

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

Specialties and state licenses

  • Internal medicine, ConnecticutPrimaryLicense 40602 · taxonomy 207R00000X

Internists near Dr. Peterson

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. Andrea A. Peterson billed Medicare for 27 services in 2017

CMS data shows 27 Medicare services from Dr. Peterson across 1 procedure code in 2017. Medicare paid $1,641 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 201727
Paid by Medicare$1,641
Procedure codes1

Dr. Peterson's Medicare services by type, 2016 to 2017

  • 2016
  • 2017
Office and hospital visits
2016: 582017: 2753%

Dr. Peterson compared with the Connecticut median for internists, 2017

  • Dr. Peterson
  • Connecticut median
Medicare services
27vs 39093% below
Part D claims
43vs 34387% below

Medians across 2,185 internists in Connecticut with Dmand AI profiles that report each measure.

Dr. Peterson's most billed Medicare procedure codes, 2017

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

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

Dr. Andrea A. Peterson's patients have a median age of 83

Across all payers, Dmand AI patient panel data puts Dr. Peterson's median patient age at 83, with 57% women.

Dr. Peterson's patients across all payers

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

Patient panel by age, all payers

Median age 83

Patient panel by sex, all payers

  • Women57%
  • Men43%

Source: Dmand AI Patient Panel Data

Dr. Andrea A. Peterson wrote 137 Medicare Part D claims in 2024

In 2024, Dr. Peterson wrote 137 Medicare Part D claims for 76 patients. 93% of them were for generic drugs. CMS names the drug for 43 of them, across 3 drugs with 11 or more claims each, at $295 in total drug cost. In 2023, CMS named 30 claims across 2 drugs.

Part D claims, 2024137
Drugs named by CMS3
Total drug cost$295
Part D patients76

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

  • Generic128 claims93%
  • Brand-name and other9 claims7%

Dr. Peterson'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. Peterson's Part D claims, 2024

  • Opioids15%21 of 137 claims
  • Antibiotics16%22 of 137 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: 302024: 4343%

Drugs named by CMS: 3 in 2024, 2 in 2023.

See all prescribing by Dr. Peterson

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

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Dr. Andrea A. Peterson graduated from University of Colorado School of Medicine

Dr. Peterson graduated from University of Colorado School of Medicine in 1997.

  1. Medical schoolUniversity of Colorado School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Andrea A. Peterson'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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 Data
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)
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. Andrea A. Peterson

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. Andrea A. Peterson's NPI number?

Dr. Andrea A. Peterson's NPI number is 1245200187. It was assigned on January 24, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Andrea A. Peterson?

Dr. Andrea A. Peterson is an internist in Torrington, Connecticut. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Andrea A. Peterson practice?

Dr. Peterson practices at 540 Litchfield St, Torrington, CT 06790. Dr. Peterson's primary practice is Charlotte Hungerford Hospital in Torrington, Connecticut. Dmand AI also links Dr. Peterson to 1 medical group.

What is Dr. Andrea A. Peterson's office phone number?

The practice phone on file for Dr. Peterson is (860) 496-6666.

What is Dr. Andrea A. Peterson's medical license number?

Dr. Peterson holds Connecticut license 040602.

Which hospitals is Dr. Andrea A. Peterson affiliated with?

Dr. Peterson is affiliated with Norwalk Hospital.

What medical group is Dr. Andrea A. Peterson part of?

Dr. Peterson is linked to Hartford HealthCare Medical Group Specialists. Dmand AI links Dr. Peterson to 1 more medical group.

Does Dr. Andrea A. Peterson accept Medicare?

Yes. CMS data shows Dr. Peterson billed Medicare for 27 services in 2017.

What services does Dr. Andrea A. Peterson bill to Medicare?

In 2017, Dr. Peterson's most billed Medicare services were hospital inpatient care (99232).

Where did Dr. Andrea A. Peterson go to medical school?

Dr. Peterson graduated from University of Colorado School of Medicine in 1997.

What drugs does Dr. Andrea A. Peterson prescribe most?

In 2024 Medicare Part D data, Dr. Peterson's most prescribed drugs by claims were Lorazepam, Trazodone HCl and Morphine Sulfate.

How long has Dr. Andrea A. Peterson been practicing?

Dr. Peterson graduated from medical school in 1997, 29 years ago.

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