Ischemic Attack, TransientThromboembolismAcetylsalicylic acid (Aspirin, BAY1019036)Rivaroxaban (Xarelto, BAY59-7939)
Dr. Christopher Andrew Stack, MD
NPI1568704971PAC ID6305145426
- Medicare services, 2024
- 94
- Medicare patients, 2024
- 133
- Part D claims, 2018
- 12
- Publications
- 3
- Clinical trials
- 2
- Practice address
- 1635 North Loop West, Houston, TX 77008
- Practice phone
- Call (713) 448-6796
- 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
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Christopher Andrew Stack is a vascular neurology physician in Houston, Texas
Dr. Stack practices at Memorial Hermann Greater Heights Hospital in Houston, Texas, part of Memorial Hermann Health System.
Dr. Stack's NPI, 1568704971, was assigned on March 24, 2013. Dr. Stack graduated from University of Maryland School of Medicine - Baltimore in 2013. Dr. Stack holds Texas license T7454.
NPI and contact details
- NPI
- 1568704971NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305145426
- NPI enumeration date
- March 24, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (713) 448-6796
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Christopher Andrew Stack practices at Memorial Hermann Greater Heights Hospital in Houston, Texas
Dr. Stack's primary practice is Memorial Hermann Greater Heights Hospital, at 1635 North Loop West, Houston, TX 77008 in Harris County. The practice phone is (713) 448-6796.
- Memorial Hermann Greater Heights Hospital1635 North Loop West, Houston, TX 77008 · Harris CountyPhone(713) 448-6796
Source: Dmand AI Affiliation Data
Dr. Christopher Andrew Stack is affiliated with 10 sites of care and 5 medical groups
Dr. Stack's primary practice is Memorial Hermann Greater Heights Hospital in Houston, Texas, part of Memorial Hermann Health System. Dr. Stack is also affiliated with Memorial Hermann-Texas Medical Center. The medical group on file is Memorial Hermann Medical Group. Dmand AI also links Dr. Stack to 3 more hospitals, 5 group practices and clinics and 4 medical groups, each named with a free account.
Memorial Hermann-Texas Medical CenterMemorial Hermann Medical Group3 hospitalsNames with a free account5 group practices and clinicsNames with a free account4 medical groupsNames with a free account
See all 15 affiliations for Dr. StackSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Christopher Andrew 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.
| Site | EHR vendor and product |
|---|---|
| Memorial Hermann Greater Heights Hospital | Available with a free account |
| +9 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every hospital where Dr. Stack practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across Memorial Hermann Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Christopher Andrew Stack is one of 73 vascular neurology physicians in Texas
Vascular neurology is Dr. Stack's primary specialty in the NPI Registry, under taxonomy code 2084V0102X. Dr. Stack is board certified in neurology by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Stack's licenses on file in 2 states: Texas and Maryland.
Specialties and state licenses
- Vascular neurology, TexasPrimary
- Maryland license
Vascular neurology physicians near Dr. Stack
Counts of vascular neurology physicians with a Dmand AI profile, by place and practice. Each opens the list.
73vascular neurology physicians in Texas35vascular neurology physicians in Houston4vascular neurology physicians at Memorial Hermann Greater Heights Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Christopher Andrew Stack billed Medicare for 94 services in 2024
CMS data shows 94 Medicare services from Dr. Stack across 4 procedure codes in 2024, for 133 Medicare patients. Medicare paid $8,764 for them.
Medicare services, 202494
Medicare patients133
Paid by Medicare$8,764
Procedure codes4
Dr. Stack's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 1272024: 6450%
- Office and hospital visits
- 2023: 612024: 3051%
Where Dr. Stack's Medicare services took place, 2024
- In an office3335%
- In a facility6165%
Dr. Stack compared with the Texas median for vascular neurology physicians, 2024
- Dr. Stack
- Texas median
- Medicare services
- 94vs 19752% below
- Medicare patients
- 133vs 12011% above
- Part D claims
- 12vs 3566% below
Medians across 71 vascular neurology physicians 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.
Need commercial claims for Dr. Stack?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Stack and other vascular neurology physicians in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Christopher Andrew Stack treated 133 Medicare patients in 2024, average age 75
CMS counts 133 Medicare patients who saw Dr. Stack in 2024. The largest group is 65 to 74, with 47 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 25% are also on Medicaid. Their average risk score is 2.33, 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 63, with 59% women.
Medicare patients, 2024133
Average age75
Average risk score2.33
Also on Medicaid25%
Dr. Stack's Medicare patients by age, 2024
Dr. Stack's Medicare patients by sex, 2024
- Women7959%
- Men5441%
Chronic conditions among Dr. Stack's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Stroke or TIA75%
- Arthritis58%
- Diabetes57%
- Ischemic heart disease51%
- Chronic kidney disease50%
- Heart failure47%
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 63
Patient panel by sex, all payers
- Women59%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Christopher Andrew Stack wrote 12 Medicare Part D claims in 2018
In 2018, Dr. Stack wrote 12 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $148 in total drug cost. In 2017, CMS named 37 claims across 3 drugs.
Part D claims, 201812
Drugs named by CMS1
Total drug cost$148
Dr. Stack's most prescribed drugs by claims, 2018
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, 2017 to 2018
- 2017
- 2018
- Claims for drugs CMS names
- 2017: 372018: 1268%
Drugs named by CMS: 1 in 2018, 3 in 2017.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Christopher Andrew 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
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
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Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Christopher Andrew Stack has 3 publications on record
Dmand AI links 3 papers to Dr. Stack.
Papers3
Recent publications by Dr. Stack
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 vascular neurology physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Christopher Andrew Stack has worked on 2 clinical trials
Dmand AI links Dr. Stack to 2 clinical trials, 2 of them phase 3 studies. Conditions studied include Ischemic Attack, Transient, Brain Ischemia and Thromboembolism.
Conditions in Dr. Stack's trials
- Ischemic Attack, Transient
- Brain Ischemia
- Thromboembolism
Investigators on the most trials with Dr. Stack
- Borja Enrique Sanz Cuesta, MD, MS2 shared trials
- Michael George Abraham, MD1 shared trial
- Luis Torres Arangua, MD1 shared trial
Recent clinical trials with Dr. Stack
Platelet-Oriented Inhibition in New TIA and Minor Ischemic Stroke (POINT) Trial (opens in a new tab)
TerminatedPhase 3
Ischemic Attack, TransientBrain IschemiaClopidogrel
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Christopher Andrew Stack received $643 in industry payments from 2018 to 2024
CMS Open Payments shows 23 general payments to Dr. Stack from 15 drug and device companies from 2018 to 2024. Food and beverage make up the largest share, 100% of the total. Medtronic Vascular, Inc. paid the most, $236.
General payments to Dr. Stack by program year, 2018 to 2024
Companies that paid Dr. Stack the most, 2018 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Christopher Andrew Stack has 10 awards and honors on record
Dmand AI lists 10 awards for Dr. Stack, most recently AHA Vascular Neurology AHA Fellow Scholarship ISC in 2018. Dr. Stack serves on Stroke Committee.
Awards and honors for Dr. Stack
- 2018
- AHA Vascular Neurology AHA Fellow Scholarship ISC
- 2017
- Mentorship and Teaching Award for Neurology Residency
- Resident Scholarship
- 2015
- Award for Best PGY-2 Neurology Resident
- 2009
- Award for Academic Excellence: Department of Chemistry and Physical Sciences
- Student Award
Dr. Stack's committees and leadership roles
- Stroke CommitteeStroke Medical Director- BWMC
- 2018 to present
Source: Dmand AI Professional Profile Data
Dr. Christopher Andrew Stack graduated from University of Maryland School of Medicine - Baltimore
Dr. Stack graduated from University of Maryland School of Medicine - Baltimore in 2013. Dr. Stack is a member of AAN and AHA.
- Medical school
- Board certified in neurology
- Board certified in vascular neurology
Source: Dmand AI Professional Profile Data
Dr. Christopher Andrew Stack accepts plans from 21 insurance carriers
Dr. Stack is in network with 21 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- CareFirst BlueCross BlueShield
- Cigna
- HCSC
- Alliant Health Plans
- Blue Cross Blue Shield of Massachusetts
- +13 more carriersWith a free account
Plan types Dr. Stack accepts, by number of carriers
- PPO13
- HMO12
- Medicare11
- POS4
- EPO2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Christopher Andrew 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Christopher Andrew 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. Christopher Andrew Stack's NPI number?
Dr. Christopher Andrew Stack's NPI number is 1568704971. It was assigned on March 24, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Christopher Andrew Stack?
Dr. Christopher Andrew Stack is a vascular neurology physician in Houston, Texas. The primary specialty in the NPI Registry is Vascular Neurology Physician (taxonomy code 2084V0102X).
Where does Dr. Christopher Andrew Stack practice?
Dr. Stack practices at 1635 North Loop West, Houston, TX 77008. Dr. Stack's primary practice is Memorial Hermann Greater Heights Hospital in Houston, Texas, part of Memorial Hermann Health System. Dmand AI also links Dr. Stack to 3 hospitals, 5 group practices and clinics and 4 medical groups.
What is Dr. Christopher Andrew Stack's office phone number?
The practice phone on file for Dr. Stack is (713) 448-6796.
What is Dr. Christopher Andrew Stack's medical license number?
Dr. Stack holds Texas license T7454, one of the licenses on file in 2 states.
Which states has Dr. Christopher Andrew Stack been licensed in?
Dmand AI has state licenses on file for Dr. Stack in Texas (2022 to 2026) and Maryland (2017 to 2025).
Which hospitals is Dr. Christopher Andrew Stack affiliated with?
Dr. Stack practices at Memorial Hermann Greater Heights Hospital in Houston, Texas. Dr. Stack is also affiliated with Memorial Hermann-Texas Medical Center. Dmand AI links Dr. Stack to 3 more hospitals.
What medical group is Dr. Christopher Andrew Stack part of?
Dr. Stack is linked to Memorial Hermann Medical Group. Dmand AI links Dr. Stack to 4 more medical groups.
Does Dr. Christopher Andrew Stack accept Medicare?
Yes. CMS data shows Dr. Stack billed Medicare for 94 services in 2024, and Dr. Stack accepts Medicare assignment.
Does Dr. Christopher Andrew Stack offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Stack as offering telehealth services.
Show 9 more questionsShow fewer questions
How many Medicare patients does Dr. Christopher Andrew Stack see?
CMS counts 133 Medicare patients who saw Dr. Stack in 2024, with an average age of 75.
Is Dr. Christopher Andrew Stack board certified?
Yes. Dr. Stack is board certified in neurology by the American Board of Psychiatry and Neurology.
What services does Dr. Christopher Andrew Stack bill to Medicare?
In 2024, Dr. Stack's most billed Medicare services were medicare service (G0425), medicare service (G0426) and hospital inpatient care (99222).
Where did Dr. Christopher Andrew Stack go to medical school?
Dr. Stack graduated from University of Maryland School of Medicine - Baltimore in 2013.
What drugs does Dr. Christopher Andrew Stack prescribe most?
In 2018 Medicare Part D data, Dr. Stack's most prescribed drugs by claims were Propranolol HCl.
Has Dr. Christopher Andrew Stack received payments from drug or device companies?
CMS Open Payments shows $643 in general payments to Dr. Stack from 15 companies from 2018 to 2024. The largest total came from Medtronic Vascular, Inc.
How long has Dr. Christopher Andrew Stack been practicing?
Dr. Stack graduated from medical school in 2013, 13 years ago.
Does Dr. Christopher Andrew Stack do research?
Dmand AI links 3 publications to Dr. Stack. Dr. Stack has worked on 2 clinical trials.
What insurance does Dr. Christopher Andrew Stack accept?
Dr. Stack is in network with 21 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.
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