Dr. Peter Steven Stack, MD

  • Dallas, TX
  • Internist
NPI1275649725PAC ID9133190499
Medicare services, 2024
1,972
Medicare patients, 2024
345
Part D claims, 2024
5,497
Publications
3
Hospital affiliations
6
Practice address
301 N Washington Ave, Dallas, TX 75246
Practice phone
Call (469) 800-4540
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Healthtexas Provider Network

Dallas, Texas

See all 13 affiliations

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Dr. Peter Steven Stack is an internist in Dallas, Texas

Dr. Stack practices at Healthtexas Provider Network in Dallas, Texas.

Dr. Stack's NPI, 1275649725, was assigned on August 21, 2006. Dr. Stack graduated from New York University School of Medicine in 1981. Dr. Stack's Texas license number on file is G2577.

NPI and contact details
Medicare PAC ID
9133190499
NPI enumeration date
August 21, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(469) 800-4540
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
71
Medical school graduation
1981

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

Dr. Peter Steven Stack practices at Healthtexas Provider Network in Dallas, Texas

Dr. Stack's primary practice is Healthtexas Provider Network, at 301 N Washington Ave, Dallas, TX 75246 in Dallas County. The practice phone is (469) 800-4540.

  • Healthtexas Provider Network
    301 N Washington Ave, Dallas, TX 75246 · Dallas CountyPhone(469) 800-4540

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

Dr. Peter Steven Stack is affiliated with 11 sites of care and 2 medical groups

Dr. Stack's primary practice is Healthtexas Provider Network in Dallas, Texas. Dr. Stack is also affiliated with Medical City Dallas Hospital. The medical group on file is HealthTexas Provider Network (HTPN). Dmand AI also links Dr. Stack to 5 more hospitals, 2 group practices and clinics, 1 home health agency, 1 hospice and 1 medical group, each named with a free account.

See all 13 affiliations for Dr. Stack

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. Peter Steven Stack's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stack practices, 10 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Healthtexas Provider NetworkAvailable with a free account
+10 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Peter Steven Stack is one of 8,437 internists in Texas

Internal medicine is Dr. Stack's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Stack is board certified in internal medicine by the American Board of Internal Medicine. Dr. Stack has a license on file in Texas.

Specialties and state licenses

  • Internal medicine, TexasPrimaryLicense G2577 · 1982 to 2025 · taxonomy 207R00000X

Clinical focus

Dmand AI lists acid reflux, acute sinusitis, acute skin infection, ADHD, adjustment disease, alzheimer's disease, aneurysm and ankle or foot injury among the conditions Dr. Stack treats.

Internists near Dr. Stack

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. Peter Steven Stack billed Medicare for 1,972 services in 2024

CMS data shows 1,972 Medicare services from Dr. Stack across 16 procedure codes in 2024, for 345 Medicare patients. Medicare paid $107,024 for them. Every service was in an office.

Medicare services, 20241,972
Medicare patients345
Paid by Medicare$107,024
Procedure codes16

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

  • 2023
  • 2024
Office and hospital visits
2023: 8172024: 8002%
Surgery
2023: 5302024: 5251%
Other services
2023: 3842024: 384No change
Tests and treatments
2023: 2062024: 16221%
Drugs given in the office
2023: 1042024: 7231%
Lab and pathology
2023: 902024: 2968%

Dr. Stack compared with the Texas median for internists, 2024

  • Dr. Stack
  • Texas median
Medicare services
1,972vs 5393.7 times
Medicare patients
345vs 19082% above
Part D claims
4,842vs 28916.8 times

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

Dr. Stack'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. Stack

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Stack and other internists in Texas.

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

Dr. Peter Steven Stack treated 345 Medicare patients in 2024, average age 77

CMS counts 345 Medicare patients who saw Dr. Stack in 2024. The largest group is 75 to 84, with 154 patients. 75% of them have high cholesterol, and 68% have high blood pressure. Their average risk score is 0.96, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Stack's median patient age at 74, with 48% women.

Medicare patients, 2024345
Average age77
Average risk score0.96

Dr. Stack's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Stack's Medicare patients by sex, 2024

  • Women14442%
  • Men20158%

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

  1. High cholesterol75%
  2. High blood pressure68%
  3. Arthritis47%
  4. Ischemic heart disease43%
  5. Osteoporosis22%
  6. Anxiety21%
  7. Atrial fibrillation21%
  8. Mood disorders19%

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

Dr. Stack's patients across all payers

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

Patient panel by age, all payers

Median age 74

Patient panel by sex, all payers

  • Women48%
  • Men49%

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

Dr. Peter Steven Stack wrote 5,497 Medicare Part D claims in 2024

In 2024, Dr. Stack wrote 5,497 Medicare Part D claims for 419 patients. 87% of them were for generic drugs. CMS names the drug for 4,842 of them, across 115 drugs with 11 or more claims each, at $421,973 in total drug cost. In 2023, CMS named 4,620 claims across 104 drugs.

Part D claims, 20245,497
Drugs named by CMS115
Total drug cost$421,973
Part D patients419

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

  • Generic4,789 claims87%
  • Brand-name690 claims13%
  • Other18 claims0%

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

  • Opioids2%85 of 5,497 claims
  • Antibiotics4%216 of 5,497 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: 4,6202024: 4,8425%

Drugs named by CMS: 115 in 2024, 104 in 2023.

See all prescribing by Dr. Stack

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. Peter Steven Stack offers telehealth to Medicare patients

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

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Peter Steven Stack has 3 publications on record

Dmand AI links 3 papers to Dr. Stack in 2019.

Papers3

Recent publications by Dr. Stack

See all 3 publications and co-authors

See who Dr. Stack researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Stack works with, so you can find a warm path to the right internists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Peter Steven Stack received $4,110 in industry payments from 2016 to 2025

CMS Open Payments shows 240 general payments to Dr. Stack from 36 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. GlaxoSmithKline, LLC. paid the most, $669.

General payments to Dr. Stack by program year, 2016 to 2025

Companies that paid Dr. Stack the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Stack

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

Dr. Peter Steven Stack has 8 awards and honors on record

Dmand AI lists 8 awards for Dr. Stack, most recently Texas Super Doctors in 2024.

Awards and honors for Dr. Stack

  1. 2024
    • Texas Super Doctors
  2. 2020
    • D Magazine Best Doctors
  3. 2015
    • NCQA PCMH
    • NCQA PPC
  4. 2014
    • Regional Top Doctor
  5. 2012
    • CMS Stage 1 2012
See all 8 awards

Source: Dmand AI Professional Profile Data

Dr. Peter Steven Stack graduated from New York University School of Medicine

Dr. Stack graduated from New York University School of Medicine in 1981.

  1. Medical schoolNew York University School of Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Peter Steven Stack accepts plans from 20 insurance carriers

Dr. Stack is in network with 20 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.

Plan types Dr. Stack accepts, by number of carriers

  1. PPO12
  2. HMO11
  3. Medicare9
  4. POS6
  5. EPO4

Source: Dmand AI Insurance Network Data

Sources for Dr. Peter Steven Stack'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 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
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. Peter Steven Stack

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. Peter Steven Stack's NPI number?

Dr. Peter Steven Stack's NPI number is 1275649725. It was assigned on August 21, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Peter Steven Stack?

Dr. Peter Steven Stack is an internist in Dallas, Texas. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Peter Steven Stack practice?

Dr. Stack practices at 301 N Washington Ave, Dallas, TX 75246. Dr. Stack's primary practice is Healthtexas Provider Network in Dallas, Texas. Dmand AI also links Dr. Stack to 5 hospitals, 2 group practices and clinics, 1 home health agency, 1 hospice and 1 medical group.

What is Dr. Peter Steven Stack's office phone number?

The practice phone on file for Dr. Stack is (469) 800-4540.

What is Dr. Peter Steven Stack's medical license number?

Dr. Stack's Texas license number on file is G2577.

Which hospitals is Dr. Peter Steven Stack affiliated with?

Dr. Stack is affiliated with Medical City Dallas Hospital. Dmand AI links Dr. Stack to 5 more hospitals.

What medical group is Dr. Peter Steven Stack part of?

Dr. Stack is linked to HealthTexas Provider Network (HTPN). Dmand AI links Dr. Stack to 1 more medical group.

Does Dr. Peter Steven Stack accept Medicare?

Yes. CMS data shows Dr. Stack billed Medicare for 1,972 services in 2024, and Dr. Stack accepts Medicare assignment.

Does Dr. Peter Steven Stack offer telehealth?

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

How many Medicare patients does Dr. Peter Steven Stack see?

CMS counts 345 Medicare patients who saw Dr. Stack in 2024, with an average age of 77.

Show 8 more questionsShow fewer questions

Is Dr. Peter Steven Stack board certified?

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

What services does Dr. Peter Steven Stack bill to Medicare?

In 2024, Dr. Stack's most billed Medicare services were surgery: heart and blood vessels (36415), office visit, established patient (99214) and office visit, established patient (99213).

Where did Dr. Peter Steven Stack go to medical school?

Dr. Stack graduated from New York University School of Medicine in 1981.

What drugs does Dr. Peter Steven Stack prescribe most?

In 2024 Medicare Part D data, Dr. Stack's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Rosuvastatin Calcium.

Has Dr. Peter Steven Stack received payments from drug or device companies?

CMS Open Payments shows $4,110 in general payments to Dr. Stack from 36 companies from 2016 to 2025. The largest total came from GlaxoSmithKline, LLC.

How long has Dr. Peter Steven Stack been practicing?

Dr. Stack graduated from medical school in 1981, 45 years ago.

Does Dr. Peter Steven Stack do research?

Dmand AI links 3 publications to Dr. Stack.

What insurance does Dr. Peter Steven Stack accept?

Dr. Stack is in network with 20 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.

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