Dr. Martin Michael Gruca, MD
- Part D claims, 2024
- 32
- Hospital affiliations
- 1
- Industry payments
- $1,369
- Medical groups
- 2
- State license
- 1
- Practice address
- 5841 S Maryland Ave, Chicago, IL 60637
- Practice phone
- Call (773) 702-1530
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
The University of Chicago Medical Center
Chicago, Illinois
Find Dr. Gruca'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. Martin Michael Gruca is a cardiologist in Chicago, Illinois
Dr. Gruca practices at The University of Chicago Medical Center in Chicago, Illinois.
Dr. Gruca's NPI, 1144724774, was assigned on March 20, 2018. Dr. Gruca graduated from University of Michigan Medical School in 2018. Dr. Gruca holds Illinois license 036.155369.
- NPI
- 1144724774NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0749525905
- NPI enumeration date
- March 20, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (773) 702-1530
- 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 Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Martin Michael Gruca practices at The University of Chicago Medical Center in Chicago, Illinois
Dr. Gruca's primary practice is The University of Chicago Medical Center, at 5841 S Maryland Ave, Chicago, IL 60637 in Cook County. The practice phone is (773) 702-1530.
- The University of Chicago Medical Center5841 S Maryland Ave, Chicago, IL 60637 · Cook CountyPhone(773) 702-1530
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Martin Michael Gruca is affiliated with 2 sites of care and 2 medical groups
Dr. Gruca's primary practice is The University of Chicago Medical Center in Chicago, Illinois. Dr. Gruca is also affiliated with University of Chicago Medical Center. The medical group on file is UChicago Medicine Physicians. Dmand AI also links Dr. Gruca to 1 more medical group, named with a free account.
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. Martin Michael Gruca's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gruca practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The University of Chicago Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Martin Michael Gruca is one of 908 cardiologists in Illinois
Cardiovascular disease is Dr. Gruca's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Gruca is licensed in Illinois.
Specialties and state licenses
- Cardiovascular disease, IllinoisPrimary
Cardiologists near Dr. Gruca
Counts of cardiologists 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. Martin Michael Gruca's patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Dr. Gruca's median patient age at 70, with 53% women.
Dr. Gruca'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
- Women53%
- Men46%
Source: Dmand AI Patient Panel Data
Dr. Martin Michael Gruca wrote 32 Medicare Part D claims in 2024
In 2024, Dr. Gruca wrote 32 Medicare Part D claims for 14 patients. 66% of them were for generic drugs. CMS names the drug for 26 of them, across 2 drugs with 11 or more claims each, at $633 in total drug cost. In 2022, CMS named 11 claims across 1 drug.
Dr. Gruca's Part D claims by kind of drug, 2024
- Generic21 claims66%
- Brand-name11 claims34%
Dr. Gruca'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.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 112023: 26136%
Drugs named by CMS: 2 in 2023, 1 in 2022.
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 Dr. Martin Michael Gruca takes part in Medicare
Dr. Gruca 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. Martin Michael Gruca received $1,369 in industry payments from 2021 to 2025
CMS Open Payments shows 62 general payments to Dr. Gruca from 16 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 93% of the total. AstraZeneca Pharmaceuticals LP paid the most, $330.
General payments to Dr. Gruca by program year, 2021 to 2025
General payments to Dr. Gruca by kind, 2021 to 2025
- Food and beverage$1,27093%
- Education$997%
Companies that paid Dr. Gruca 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. Martin Michael Gruca graduated from University of Michigan Medical School
Dr. Gruca graduated from University of Michigan Medical School in 2018.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Martin Michael Gruca'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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. Martin Michael Gruca
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. Martin Michael Gruca's NPI number?
Dr. Martin Michael Gruca's NPI number is 1144724774. It was assigned on March 20, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Martin Michael Gruca?
Dr. Martin Michael Gruca is a cardiologist in Chicago, Illinois. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. Martin Michael Gruca practice?
Dr. Gruca practices at 5841 S Maryland Ave, Chicago, IL 60637. Dr. Gruca's primary practice is The University of Chicago Medical Center in Chicago, Illinois. Dmand AI also links Dr. Gruca to 1 medical group.
What is Dr. Martin Michael Gruca's office phone number?
The practice phone on file for Dr. Gruca is (773) 702-1530.
What is Dr. Martin Michael Gruca's medical license number?
Dr. Gruca holds Illinois license 036.155369.
Which hospitals is Dr. Martin Michael Gruca affiliated with?
Dr. Gruca is affiliated with University of Chicago Medical Center.
What medical group is Dr. Martin Michael Gruca part of?
Dr. Gruca is linked to UChicago Medicine Physicians. Dmand AI links Dr. Gruca to 1 more medical group.
Does Dr. Martin Michael Gruca accept Medicare?
Yes. CMS lists Dr. Gruca as accepting Medicare assignment.
Where did Dr. Martin Michael Gruca go to medical school?
Dr. Gruca graduated from University of Michigan Medical School in 2018.
What drugs does Dr. Martin Michael Gruca prescribe most?
In 2023 Medicare Part D data, Dr. Gruca's most prescribed drugs by claims were Metoprolol Succinate and Rosuvastatin Calcium.
Has Dr. Martin Michael Gruca received payments from drug or device companies?
CMS Open Payments shows $1,369 in general payments to Dr. Gruca from 16 companies from 2021 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Martin Michael Gruca been practicing?
Dr. Gruca graduated from medical school in 2018, 8 years ago.
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