Dr. David John Gryniewicz, MD
- Part D claims, 2024
- 859
- Industry payments
- $70
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 5716 Michigan Avenue, Suite 1100, Detroit, MI 48210
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Covenant Community Care - Detroit (Michigan Ave)
FQHC - Main Site · Detroit, Michigan
Find Dr. Gryniewicz'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. David John Gryniewicz is a family medicine physician in Detroit, Michigan
Dr. Gryniewicz practices at Covenant Community Care - Detroit (Michigan Ave) in Detroit, Michigan.
Dr. Gryniewicz's NPI, 1982019642, was assigned on June 21, 2014. Dr. Gryniewicz graduated from University of Michigan Medical School in 2014. Dr. Gryniewicz holds Michigan license 4301105549.
- NPI
- 1982019642NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2668771189
- NPI enumeration date
- June 21, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David John Gryniewicz practices at Covenant Community Care - Detroit (Michigan Ave) in Detroit, Michigan
Dr. Gryniewicz's primary practice is Covenant Community Care - Detroit (Michigan Ave), at 5716 Michigan Avenue, Suite 1100, Detroit, MI 48210 in Wayne County.
- Covenant Community Care - Detroit (Michigan Ave)5716 Michigan Avenue, Suite 1100, Detroit, MI 48210 · Wayne County
Source: Dmand AI Affiliation Data
Dr. David John Gryniewicz is affiliated with 1 site of care and 1 medical group
Dr. Gryniewicz's primary practice is Covenant Community Care - Detroit (Michigan Ave) in Detroit, Michigan. The medical group on file is Covenant Community Care. Dr. Gryniewicz's employer is on file too: a community health center (fqhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David John Gryniewicz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gryniewicz practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Covenant Community Care - Detroit (Michigan Ave) | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David John Gryniewicz is one of 4,931 family medicine physicians in Michigan
Family medicine is Dr. Gryniewicz's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Gryniewicz is licensed in Michigan.
Specialties and state licenses
- Family medicine, MichiganPrimary
Family medicine physicians near Dr. Gryniewicz
Counts of family 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
Dr. David John Gryniewicz's patients have a median age of 42
Across all payers, Dmand AI patient panel data puts Dr. Gryniewicz's median patient age at 42, with 59% women.
Dr. Gryniewicz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 42
Patient panel by sex, all payers
- Women59%
- Men41%
Source: Dmand AI Patient Panel Data
Dr. David John Gryniewicz wrote 859 Medicare Part D claims in 2024
In 2024, Dr. Gryniewicz wrote 859 Medicare Part D claims for 47 patients. 78% of them were for generic drugs. CMS names the drug for 559 of them, across 21 drugs with 11 or more claims each, at $64,950 in total drug cost. In 2023, CMS named 857 claims across 27 drugs.
Dr. Gryniewicz's Part D claims by kind of drug, 2024
- Generic674 claims78%
- Brand-name164 claims19%
- Other21 claims2%
Dr. Gryniewicz'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: 8572024: 55935%
Drugs named by CMS: 21 in 2024, 27 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), 2024 data
How Dr. David John Gryniewicz takes part in Medicare
Dr. Gryniewicz 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. David John Gryniewicz received $70 in industry payments from 2016 to 2022
CMS Open Payments shows 5 general payments to Dr. Gryniewicz from 4 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $25.
General payments to Dr. Gryniewicz by program year, 2016 to 2022
Companies that paid Dr. Gryniewicz the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David John Gryniewicz graduated from University of Michigan Medical School
Dr. Gryniewicz graduated from University of Michigan Medical School in 2014.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David John Gryniewicz'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 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. David John Gryniewicz
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. David John Gryniewicz's NPI number?
Dr. David John Gryniewicz's NPI number is 1982019642. It was assigned on June 21, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. David John Gryniewicz?
Dr. David John Gryniewicz is a family medicine physician in Detroit, Michigan. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. David John Gryniewicz practice?
Dr. Gryniewicz practices at 5716 Michigan Avenue, Suite 1100, Detroit, MI 48210. Dr. Gryniewicz's primary practice is Covenant Community Care - Detroit (Michigan Ave) in Detroit, Michigan.
What is Dr. David John Gryniewicz's medical license number?
Dr. Gryniewicz holds Michigan license 4301105549.
What medical group is Dr. David John Gryniewicz part of?
Dr. Gryniewicz is linked to Covenant Community Care.
Does Dr. David John Gryniewicz accept Medicare?
Yes. CMS lists Dr. Gryniewicz as accepting Medicare assignment.
Where did Dr. David John Gryniewicz go to medical school?
Dr. Gryniewicz graduated from University of Michigan Medical School in 2014.
What drugs does Dr. David John Gryniewicz prescribe most?
In 2024 Medicare Part D data, Dr. Gryniewicz's most prescribed drugs by claims were Suboxone, Atorvastatin Calcium and Amlodipine Besylate.
Has Dr. David John Gryniewicz received payments from drug or device companies?
CMS Open Payments shows $70 in general payments to Dr. Gryniewicz from 4 companies from 2016 to 2022. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. David John Gryniewicz been practicing?
Dr. Gryniewicz graduated from medical school in 2014, 12 years ago.
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