Dr. Allen Sonstein, MD

  • Austin, TX
  • Internist
NPI1831194489
Medicare services, 2021
538
Part D claims, 2024
27
Industry payments
$2,068
Affiliated sites
1
Medical group
1
Practice address
7201 Manchaca Rd B, Austin, TX 78745-5259
Practice phone
Call (512) 443-3577
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Adult Care Of Austin

Primary care practice · Austin, Texas

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Dr. Allen Sonstein is an internist in Austin, Texas

Dr. Sonstein practices at Adult Care Of Austin in Austin, Texas.

Dr. Sonstein's NPI, 1831194489, was assigned on June 19, 2005. Dr. Sonstein graduated from Sidney Kimmel Medical College in 1972. Dr. Sonstein holds Texas license E3462.

NPI and contact details
NPI enumeration date
June 19, 2005
NPI status
Active
Practice phone
(512) 443-3577
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
80
Medical school graduation
1972

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

Dr. Allen Sonstein practices at Adult Care of Austin in Austin, Texas

Dr. Sonstein's primary practice is Adult Care of Austin, at 7201 Manchaca Rd B, Austin, TX 78745-5259. The practice phone is (512) 443-3577.

  • Adult Care of Austin
    7201 Manchaca Rd B, Austin, TX 78745-5259Phone(512) 443-3577

Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Allen Sonstein is affiliated with 1 site of care and 1 medical group

Dr. Sonstein's primary practice is Adult Care Of Austin in Austin, Texas. The medical group on file is Adult Care of Austin.

Adult Care Of AustinPrimary care practice · Austin, TexasPrimary
Adult Care of AustinPrimary care group, Austin, TX

Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dmand AI tracks the EHR system at Dr. Allen Sonstein's practice

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

EHR by site
SiteEHR vendor and product
Adult Care Of AustinAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Allen Sonstein is one of 8,437 internists in Texas

Internal medicine is Dr. Sonstein's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Sonstein is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Sonstein's licenses on file in 2 states: Texas and Pennsylvania.

Specialties and state licenses

  • Internal medicine, TexasPrimaryLicense E3462 · 1974 to 2026 · taxonomy 207R00000X
  • Pennsylvania license1973 to 1984

Internists near Dr. Sonstein

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. Allen Sonstein billed Medicare for 538 services in 2021

CMS data shows 538 Medicare services from Dr. Sonstein across 8 procedure codes in 2021. Medicare paid $27,732 for them. Every service was in an office.

Medicare services, 2021538
Paid by Medicare$27,732
Procedure codes8

Dr. Sonstein's Medicare services by type, 2020 to 2021

  • 2020
  • 2021
Office and hospital visits
2020: 2,2152021: 50177%
Other services
2020: 1802021: 3779%
Lab and pathology
2020: 522021: 0100%
Tests and treatments
2020: 832021: 0100%
Surgery
2020: 242021: 0100%

Dr. Sonstein compared with the Texas median for internists, 2021

  • Dr. Sonstein
  • Texas median
Medicare services
538vs 539Close to median
Part D claims
11vs 28996% below

Medians across 7,794 internists in Texas with Dmand AI profiles that report each measure.

Dr. Sonstein's most billed Medicare procedure codes, 2021

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. Allen Sonstein's patients have a median age of 76

Across all payers, Dmand AI patient panel data puts Dr. Sonstein's median patient age at 76, with 47% women.

Dr. Sonstein's patients across all payers

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

Patient panel by age, all payers

Median age 76

Patient panel by sex, all payers

  • Women47%
  • Men53%

Source: Dmand AI Patient Panel Data

Dr. Allen Sonstein wrote 27 Medicare Part D claims in 2024

In 2024, Dr. Sonstein wrote 27 Medicare Part D claims. 100% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $126 in total drug cost. In 2021, CMS named 1,582 claims across 52 drugs.

Part D claims, 202427
Drugs named by CMS1
Total drug cost$126

Dr. Sonstein's most prescribed drugs by claims, 2022

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

Part D claims for drugs CMS names, 2021 to 2022

  • 2021
  • 2022
Claims for drugs CMS names
2021: 1,5822022: 1199%

Drugs named by CMS: 1 in 2022, 52 in 2021.

See all prescribing by Dr. Sonstein

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. Allen Sonstein received $2,068 in industry payments from 2016 to 2023

CMS Open Payments shows 72 general payments to Dr. Sonstein from 18 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 80% of the total. Janssen Research & Development, LLC paid the most, $1,033.

General payments to Dr. Sonstein by program year, 2016 to 2023

General payments to Dr. Sonstein by kind, 2016 to 2023

$2.1Kin total
  • Food and beverage$1,65680%
  • Travel and lodging$41320%

Companies that paid Dr. Sonstein the most, 2016 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. Sonstein

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

Dr. Allen Sonstein has 3 awards and honors on record

Dmand AI lists 3 awards for Dr. Sonstein, most recently CMS Stage 1 EHR in 2012.

Awards and honors for Dr. Sonstein

  1. 2012
    • CMS Stage 1 EHR
  2. Undated
    • Checkbook Top Doc
    • Super Doc

Source: Dmand AI Professional Profile Data

Dr. Allen Sonstein graduated from Sidney Kimmel Medical College

Dr. Sonstein graduated from Sidney Kimmel Medical College in 1972.

  1. Medical schoolSidney Kimmel Medical College
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Allen Sonstein accepts plans from 17 insurance carriers

Dr. Sonstein is in network with 17 carriers, including Excellus BlueCross BlueShield, Elevance and United Healthcare. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

  • Excellus BlueCross BlueShield
  • Elevance
  • United Healthcare
  • Blue Cross Blue Shield of Michigan
  • HCSC
  • Aetna
  • Alliant Health Plans
  • Blue Cross Blue Shield of Massachusetts
  • +9 more carriersWith a free account

Plan types Dr. Sonstein accepts, by number of carriers

  1. PPO11
  2. HMO9
  3. Medicare6
  4. POS5
  5. EPO4

Source: Dmand AI Insurance Network Data

Sources for Dr. Allen Sonstein'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Primary practice, affiliations and health systemDmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
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)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network 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. Allen Sonstein

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. Allen Sonstein's NPI number?

Dr. Allen Sonstein's NPI number is 1831194489. It was assigned on June 19, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Allen Sonstein?

Dr. Allen Sonstein is an internist in Austin, Texas. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Allen Sonstein practice?

Dr. Sonstein practices at 7201 Manchaca Rd B, Austin, TX 78745-5259. Dr. Sonstein's primary practice is Adult Care Of Austin in Austin, Texas.

What is Dr. Allen Sonstein's office phone number?

The practice phone on file for Dr. Sonstein is (512) 443-3577.

What is Dr. Allen Sonstein's medical license number?

Dr. Sonstein holds Texas license E3462, one of the licenses on file in 2 states.

Which states has Dr. Allen Sonstein been licensed in?

Dmand AI has state licenses on file for Dr. Sonstein in Texas (1974 to 2026) and Pennsylvania (1973 to 1984).

What medical group is Dr. Allen Sonstein part of?

Dr. Sonstein is linked to Adult Care of Austin.

Does Dr. Allen Sonstein accept Medicare?

Yes. CMS data shows Dr. Sonstein billed Medicare for 538 services in 2021.

Is Dr. Allen Sonstein board certified?

Yes. Dr. Sonstein is board certified in internal medicine by the American Board of Internal Medicine.

What services does Dr. Allen Sonstein bill to Medicare?

In 2021, Dr. Sonstein's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and care management and other visits (99490).

Show 5 more questionsShow fewer questions

Where did Dr. Allen Sonstein go to medical school?

Dr. Sonstein graduated from Sidney Kimmel Medical College in 1972.

What drugs does Dr. Allen Sonstein prescribe most?

In 2022 Medicare Part D data, Dr. Sonstein's most prescribed drugs by claims were Atorvastatin Calcium.

Has Dr. Allen Sonstein received payments from drug or device companies?

CMS Open Payments shows $2,068 in general payments to Dr. Sonstein from 18 companies from 2016 to 2023. The largest total came from Janssen Research & Development, LLC.

How long has Dr. Allen Sonstein been practicing?

Dr. Sonstein graduated from medical school in 1972, 54 years ago.

What insurance does Dr. Allen Sonstein accept?

Dr. Sonstein is in network with 17 carriers, including Excellus BlueCross BlueShield, Elevance and United Healthcare. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

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