Grant T. Comstock
- Medicare services, 2024
- 287
- Medicare patients, 2024
- 210
- Part D claims, 2024
- 101
- Hospital affiliations
- 3
- Medical groups
- 2
- Practice address
- 9200 W Wisconsin Ave, Milwaukee, WI 53226
- Practice phone
- Call (414) 805-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Grant Comstock'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.
Grant T. Comstock is an emergency medicine physician in Milwaukee, Wisconsin
Grant Comstock practices at Froedtert Hospital in Milwaukee, Wisconsin, part of Froedtert ThedaCare Health.
Grant Comstock's NPI, 1235591439, was assigned on March 25, 2016. Grant Comstock graduated from University of Cincinnati College of Medicine in 2016. Grant Comstock holds Wisconsin license 76917.
- NPI
- 1235591439NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9133546534
- NPI enumeration date
- March 25, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (414) 805-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Grant T. Comstock practices at Froedtert Hospital in Milwaukee, Wisconsin
Grant Comstock's primary practice is Froedtert Hospital, at 9200 W Wisconsin Ave, Milwaukee, WI 53226 in Milwaukee County. The practice phone is (414) 805-3000.
- Froedtert Hospital9200 W Wisconsin Ave, Milwaukee, WI 53226 · Milwaukee CountyPhone(414) 805-3000
Source: Dmand AI Affiliation Data
Grant T. Comstock is affiliated with 3 sites of care and 2 medical groups
Grant Comstock's primary practice is Froedtert Hospital in Milwaukee, Wisconsin, part of Froedtert ThedaCare Health. Grant Comstock is also affiliated with Froedtert Menomonee Falls Hospital. The medical group on file is Froedtert & the Medical College of Wisconsin Community Physicians. Dmand AI also links Grant Comstock to 1 more hospital and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Grant T. Comstock's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Grant Comstock practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Froedtert Hospital | Available with a free account |
| +2 more sites and 1 medical group | 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 Froedtert ThedaCare Health and 6.2K+ hospitals, with verified contacts in the same login.
Grant T. Comstock is one of 1,211 emergency medicine physicians in Wisconsin
Emergency medicine is Grant Comstock's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Grant Comstock is licensed in Wisconsin.
Specialties and state licenses
- Emergency medicine, WisconsinPrimary
Emergency medicine physicians near Grant Comstock
Counts of emergency medicine physicians 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
Grant T. Comstock billed Medicare for 287 services in 2024
CMS data shows 287 Medicare services from Grant Comstock across 5 procedure codes in 2024, for 210 Medicare patients. Medicare paid $23,528 for them. Every service was in a facility, such as a hospital, rather than an office.
Grant Comstock's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3902024: 20448%
- Tests and treatments
- 2023: 1752024: 8353%
Grant Comstock compared with the Wisconsin median for emergency medicine physicians, 2024
- Grant Comstock
- Wisconsin median
- Medicare services
- 287vs 24617% above
- Medicare patients
- 210vs 221Close to median
- Part D claims
- 85vs 5749% above
Medians across 1,249 emergency medicine physicians in Wisconsin with Dmand AI profiles that report each measure.
Grant Comstock'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 Grant Comstock?
Medicare shows one payer. Book a meeting to get commercial claims data for Grant Comstock and other emergency medicine physicians in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Grant T. Comstock treated 210 Medicare patients in 2024, average age 73
CMS counts 210 Medicare patients who saw Grant Comstock in 2024. The largest group is 75 to 84, with 75 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 30% are also on Medicaid. Their average risk score is 2.45, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Grant Comstock's median patient age at 55, with 59% women.
Grant Comstock's Medicare patients by age, 2024
Grant Comstock's Medicare patients by sex, 2024
- Women12459%
- Men8641%
Chronic conditions among Grant Comstock's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Chronic kidney disease50%
- Ischemic heart disease41%
- Heart failure40%
- Diabetes38%
- Mood disorders35%
Share of Medicare patients with each condition. A patient can have several.
Grant Comstock's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women59%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Grant T. Comstock wrote 101 Medicare Part D claims in 2024
In 2024, Grant Comstock wrote 101 Medicare Part D claims for 80 patients. 90% of them were for generic drugs. CMS names the drug for 85 of them, across 6 drugs with 11 or more claims each, at $906 in total drug cost.
Grant Comstock's Part D claims by kind of drug, 2024
- Generic91 claims90%
- Brand-name and other10 claims10%
Grant Comstock's most prescribed drugs by claims, 2023
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 Grant Comstock's Part D claims, 2024
- Antibiotics28%28 of 101 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
How Grant T. Comstock takes part in Medicare
Grant Comstock 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Grant T. Comstock graduated from University of Cincinnati College of Medicine
Grant Comstock graduated from University of Cincinnati College of Medicine in 2016.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Grant T. Comstock'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) |
| 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 Grant T. Comstock
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Grant T. Comstock's NPI number?
Grant T. Comstock's NPI number is 1235591439. It was assigned on March 25, 2016, and it is active in the NPI Registry.
What does Grant T. Comstock specialize in?
Grant T. Comstock is an emergency medicine physician in Milwaukee, Wisconsin. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Grant T. Comstock practice?
Grant Comstock practices at 9200 W Wisconsin Ave, Milwaukee, WI 53226. Grant Comstock's primary practice is Froedtert Hospital in Milwaukee, Wisconsin, part of Froedtert ThedaCare Health. Dmand AI also links Grant Comstock to 1 hospital and 1 medical group.
What is Grant T. Comstock's office phone number?
The practice phone on file for Grant Comstock is (414) 805-3000.
What is Grant T. Comstock's medical license number?
Grant Comstock holds Wisconsin license 76917.
Which hospitals is Grant T. Comstock affiliated with?
Grant Comstock practices at Froedtert Hospital in Milwaukee, Wisconsin. Grant Comstock is also affiliated with Froedtert Menomonee Falls Hospital. Dmand AI links Grant Comstock to 1 more hospital.
What medical group is Grant T. Comstock part of?
Grant Comstock is linked to Froedtert & the Medical College of Wisconsin Community Physicians. Dmand AI links Grant Comstock to 1 more medical group.
Does Grant T. Comstock accept Medicare?
Yes. CMS data shows Grant Comstock billed Medicare for 287 services in 2024, and Grant Comstock accepts Medicare assignment.
How many Medicare patients does Grant T. Comstock see?
CMS counts 210 Medicare patients who saw Grant Comstock in 2024, with an average age of 73.
What services does Grant T. Comstock bill to Medicare?
In 2024, Grant Comstock's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).
Show 3 more questionsShow fewer questions
Where did Grant T. Comstock go to medical school?
Grant Comstock graduated from University of Cincinnati College of Medicine in 2016.
What drugs does Grant T. Comstock prescribe most?
In 2023 Medicare Part D data, Grant Comstock's most prescribed drugs by claims were Cefdinir, Cephalexin and Prednisone.
How long has Grant T. Comstock been practicing?
Grant Comstock graduated from medical school in 2016, 10 years ago.
Selling to emergency medicine practices?
See emergency medicine physicians in Wisconsin by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card