Dr. Anthony Christopher Stack, DO
- Medicare services, 2024
- 225
- Medicare patients, 2026
- 56
- Part D claims, 2026
- 163
- Hospital affiliations
- 3
- Industry payments
- $1,203
- Practice address
- 100 Medical Campus Drive, Lansdale, PA 19446
- Practice phone
- Call (215) 368-2100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Stack's professional email, personal email and mobile number
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Dr. Anthony Christopher Stack is an internist in Lansdale, Pennsylvania
Dr. Stack practices at Jefferson Lansdale Hospital in Lansdale, Pennsylvania, part of Thomas Jefferson University.
Dr. Stack's NPI, 1912491663, was assigned on June 17, 2018. Dr. Stack graduated from Lake Erie College of Osteopathic Medicine, Erie in 2018. Dr. Stack holds Pennsylvania license OS020804.
- NPI
- 1912491663NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5395091797
- NPI enumeration date
- June 17, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (215) 368-2100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Anthony Christopher Stack practices at Jefferson Lansdale Hospital in Lansdale, Pennsylvania
Dr. Stack's primary practice is Jefferson Lansdale Hospital, at 100 Medical Campus Drive, Lansdale, PA 19446 in Montgomery County. The practice phone is (215) 368-2100.
- Jefferson Lansdale Hospital100 Medical Campus Drive, Lansdale, PA 19446 · Montgomery CountyPhone(215) 368-2100
Source: Dmand AI Affiliation Data
Dr. Anthony Christopher Stack is affiliated with 3 sites of care and 1 medical group
Dr. Stack's primary practice is Jefferson Lansdale Hospital in Lansdale, Pennsylvania, part of Thomas Jefferson University. Dr. Stack is also affiliated with Temple University Hospital. The medical group on file is Temple Faculty Physicians. Dmand AI also links Dr. Stack to 1 more hospital, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Anthony Christopher Stack's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stack practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Jefferson Lansdale Hospital | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Thomas Jefferson University and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Anthony Christopher Stack is one of 5,665 internists in Pennsylvania
Internal medicine is Dr. Stack's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Stack is licensed in Pennsylvania.
Specialties and state licenses
- Internal medicine, PennsylvaniaPrimary
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. Anthony Christopher Stack billed Medicare for 225 services in 2024
CMS data shows 225 Medicare services from Dr. Stack across 3 procedure codes in 2024, for 56 Medicare patients. Medicare paid $15,595 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Stack's Medicare services by type, 2022 to 2024
- 2022
- 2024
- Office and hospital visits
- 2022: 132024: 2251631%
Dr. Stack compared with the Pennsylvania median for internists, 2024
- Dr. Stack
- Pennsylvania median
- Medicare services
- 225vs 41746% below
- Medicare patients
- 56vs 18570% below
- Part D claims
- 39vs 22483% below
Medians across 5,518 internists in Pennsylvania 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.
Need commercial claims for Dr. Stack?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Stack and other internists in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Anthony Christopher Stack treated 56 Medicare patients in 2026, average age 71
CMS counts 56 Medicare patients who saw Dr. Stack in 2026. The largest group is 65 to 74, with 31 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 2.31, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Stack's median patient age at 70, with 48% women.
Dr. Stack's Medicare patients by age, 2026
CMS leaves out age groups with fewer than 11 patients.
Dr. Stack's Medicare patients by sex, 2026
- Women2341%
- Men3359%
Chronic conditions among Dr. Stack's Medicare patients, 2026
- High blood pressure75%
- High cholesterol75%
- Anxiety50%
- Chronic kidney disease50%
- Ischemic heart disease45%
- Arthritis41%
- Diabetes38%
- Heart failure38%
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 70
Patient panel by sex, all payers
- Women48%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2026 data
Dr. Anthony Christopher Stack wrote 163 Medicare Part D claims in 2026
In 2026, Dr. Stack wrote 163 Medicare Part D claims for 46 patients. 81% of them were for generic drugs. CMS names the drug for 39 of them, across 3 drugs with 11 or more claims each, at $368 in total drug cost. In 2023, CMS named 101 claims across 6 drugs.
Dr. Stack's Part D claims by kind of drug, 2026
- Generic132 claims81%
- Brand-name31 claims19%
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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1012024: 3961%
Drugs named by CMS: 3 in 2024, 6 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2026 data
How Dr. Anthony Christopher Stack takes part in Medicare
Dr. Stack accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Anthony Christopher Stack received $1,203 in industry payments from 2021 to 2025
CMS Open Payments shows 20 general payments to Dr. Stack from 11 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 73% of the total. Janssen Pharmaceuticals, Inc paid the most, $462.
General payments to Dr. Stack by program year, 2021 to 2025
General payments to Dr. Stack by kind, 2021 to 2025
- Food and beverage$87973%
- Education$17414%
- Consulting fees$15012%
Companies that paid Dr. Stack the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Anthony Christopher Stack graduated from Lake Erie College of Osteopathic Medicine, Erie
Dr. Stack graduated from Lake Erie College of Osteopathic Medicine, Erie in 2018.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Anthony Christopher Stack's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Anthony Christopher 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. Anthony Christopher Stack's NPI number?
Dr. Anthony Christopher Stack's NPI number is 1912491663. It was assigned on June 17, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Anthony Christopher Stack?
Dr. Anthony Christopher Stack is an internist in Lansdale, Pennsylvania. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Anthony Christopher Stack practice?
Dr. Stack practices at 100 Medical Campus Drive, Lansdale, PA 19446. Dr. Stack's primary practice is Jefferson Lansdale Hospital in Lansdale, Pennsylvania, part of Thomas Jefferson University. Dmand AI also links Dr. Stack to 1 hospital, and a free account names each one.
What is Dr. Anthony Christopher Stack's office phone number?
The practice phone on file for Dr. Stack is (215) 368-2100. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Dr. Anthony Christopher Stack's email address?
Dmand AI checks professional and personal email addresses for Dr. Stack through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Dr. Anthony Christopher Stack's medical license number?
Dr. Stack holds Pennsylvania license OS020804.
Which hospitals is Dr. Anthony Christopher Stack affiliated with?
Dr. Stack practices at Jefferson Lansdale Hospital in Lansdale, Pennsylvania. Dr. Stack is also affiliated with Temple University Hospital. Dmand AI links Dr. Stack to 1 more hospital, named with a free account.
What medical group is Dr. Anthony Christopher Stack part of?
Dr. Stack is linked to Temple Faculty Physicians.
Who does Dr. Anthony Christopher Stack practice with?
Dmand AI links 1,358 HCPs to Dr. Stack's primary medical group, 180 of them internists. A free account lists them, with verified contacts.
Does Dr. Anthony Christopher Stack accept Medicare?
Yes. CMS data shows Dr. Stack billed Medicare for 225 services in 2024, and Dr. Stack accepts Medicare assignment.
Show 7 more questionsShow fewer questions
How many Medicare patients does Dr. Anthony Christopher Stack see?
CMS counts 56 Medicare patients who saw Dr. Stack in 2026, with an average age of 71.
What services does Dr. Anthony Christopher Stack bill to Medicare?
In 2024, Dr. Stack's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99238).
Where did Dr. Anthony Christopher Stack go to medical school?
Dr. Stack graduated from Lake Erie College of Osteopathic Medicine, Erie in 2018.
What drugs does Dr. Anthony Christopher Stack prescribe most?
In 2024 Medicare Part D data, Dr. Stack's most prescribed drugs by claims were Acyclovir, Pantoprazole Sodium and Allopurinol.
Has Dr. Anthony Christopher Stack received payments from drug or device companies?
CMS Open Payments shows $1,203 in general payments to Dr. Stack from 11 companies from 2021 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Anthony Christopher Stack been practicing?
Dr. Stack graduated from medical school in 2018, 8 years ago.
What EHR does Dr. Anthony Christopher Stack's practice use?
Dmand AI tracks the EHR system at Jefferson Lansdale Hospital and at 2 more affiliated sites. The vendor and product are available with a free Dmand AI account.
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