Dr. Jennifer Gay Hemingway, DO
- Medicare services, 2023
- 14
- Part D claims, 2024
- 13
- Industry payments
- $93
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 2332 Alpine Ave Nw, Grand Rapids, MI 49544
- Practice phone
- Call (616) 391-8274
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Trinity Health Medical Group - Grand Rapids (Alpine Ave NW)
Primary care practice · Grand Rapids, Michigan
Find Dr. Hemingway'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. Jennifer Gay Hemingway is an internist in Grand Haven, Michigan
Dr. Hemingway practices at Trinity Health Medical Group - Grand Rapids (Alpine Ave NW) in Grand Rapids, Michigan.
Dr. Hemingway's NPI, 1275597635, was assigned on April 13, 2006. Dr. Hemingway graduated from Michigan State University College of Osteopathic Medicine in 1992. Dr. Hemingway holds Michigan license 5101011622.
- NPI
- 1275597635NPI Registry (opens in a new tab)
- NPI enumeration date
- April 13, 2006
- NPI status
- Active
- Practice phone
- (616) 391-8274
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jennifer Gay Hemingway practices in Grand Rapids and Grand Haven
Dr. Hemingway's primary practice is Trinity Health Medical Group - Grand Rapids (Alpine Ave NW), at 2332 Alpine Ave Nw, Grand Rapids, MI 49544. The practice phone is (616) 391-8274. The NPI Registry lists Dr. Hemingway's practice address as 1071 S Beacon Blvd, Grand Haven, MI 49417.
- Trinity Health Medical Group - Grand Rapids (Alpine Ave NW)Primary2332 Alpine Ave Nw, Grand Rapids, MI 49544Phone(616) 391-8274
- NPI Registry address1071 S Beacon Blvd, Grand Haven, MI 49417 · Ottawa CountyPhone(616) 391-9536
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Jennifer Gay Hemingway is affiliated with 1 site of care and 1 medical group
Dr. Hemingway's primary practice is Trinity Health Medical Group - Grand Rapids (Alpine Ave NW) in Grand Rapids, Michigan. The medical group on file is Trinity Health Medical Group.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Jennifer Gay Hemingway's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hemingway practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Trinity Health Medical Group - Grand Rapids (Alpine Ave NW) | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Jennifer Gay Hemingway is one of 4,804 internists in Michigan
Internal medicine is Dr. Hemingway's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Hemingway is licensed in Michigan.
Specialties and state licenses
- Internal medicine, MichiganPrimary
Internists near Dr. Hemingway
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. Jennifer Gay Hemingway billed Medicare for 14 services in 2023
CMS data shows 14 Medicare services from Dr. Hemingway across 1 procedure code in 2023, all of them office visits. Medicare paid $607 for them. Every service was in an office.
Dr. Hemingway's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 972023: 1486%
- Other services
- 2022: 152023: 0100%
Dr. Hemingway compared with the Michigan median for internists, 2023
- Dr. Hemingway
- Michigan median
- Medicare services
- 14vs 42397% below
- Part D claims
- 1,775vs 3145.7 times
Medians across 4,524 internists in Michigan with Dmand AI profiles that report each measure.
Dr. Hemingway's most billed Medicare procedure codes, 2023
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. Hemingway?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hemingway and other internists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jennifer Gay Hemingway's patients have a median age of 56
Across all payers, Dmand AI patient panel data puts Dr. Hemingway's median patient age at 56, with 86% women.
Dr. Hemingway's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women86%
- Men13%
Source: Dmand AI Patient Panel Data
Dr. Jennifer Gay Hemingway wrote 13 Medicare Part D claims in 2024
In 2024, Dr. Hemingway wrote 13 Medicare Part D claims. They cover 49 drugs, with $147,813 in total drug cost. In 2022, CMS named 4,410 claims across 103 drugs.
Dr. Hemingway'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: 4,4102023: 1,77560%
Drugs named by CMS: 49 in 2023, 103 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
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.
Dr. Jennifer Gay Hemingway received $93 in industry payments from 2016 to 2022
CMS Open Payments shows 4 general payments to Dr. Hemingway from 3 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $37.
General payments to Dr. Hemingway by program year, 2016 to 2022
Companies that paid Dr. Hemingway 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. Jennifer Gay Hemingway graduated from Michigan State University College of Osteopathic Medicine
Dr. Hemingway graduated from Michigan State University College of Osteopathic Medicine in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jennifer Gay Hemingway'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 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) |
| 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. Jennifer Gay Hemingway
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. Jennifer Gay Hemingway's NPI number?
Dr. Jennifer Gay Hemingway's NPI number is 1275597635. It was assigned on April 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Jennifer Gay Hemingway?
Dr. Jennifer Gay Hemingway is an internist in Grand Haven, Michigan. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Jennifer Gay Hemingway practice?
Dr. Hemingway practices at 2332 Alpine Ave Nw, Grand Rapids, MI 49544. Dr. Hemingway also practices at 1071 S Beacon Blvd, Grand Haven, MI 49417. Dr. Hemingway's primary practice is Trinity Health Medical Group - Grand Rapids (Alpine Ave NW) in Grand Rapids, Michigan.
What is Dr. Jennifer Gay Hemingway's office phone number?
The practice phone on file for Dr. Hemingway is (616) 391-8274.
What is Dr. Jennifer Gay Hemingway's medical license number?
Dr. Hemingway holds Michigan license 5101011622.
What medical group is Dr. Jennifer Gay Hemingway part of?
Dr. Hemingway is linked to Trinity Health Medical Group.
Does Dr. Jennifer Gay Hemingway accept Medicare?
Yes. CMS data shows Dr. Hemingway billed Medicare for 14 services in 2023.
What services does Dr. Jennifer Gay Hemingway bill to Medicare?
In 2023, Dr. Hemingway's most billed Medicare services were office visit, established patient (99214).
Where did Dr. Jennifer Gay Hemingway go to medical school?
Dr. Hemingway graduated from Michigan State University College of Osteopathic Medicine in 1992.
What drugs does Dr. Jennifer Gay Hemingway prescribe most?
In 2023 Medicare Part D data, Dr. Hemingway's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Lisinopril.
Has Dr. Jennifer Gay Hemingway received payments from drug or device companies?
CMS Open Payments shows $93 in general payments to Dr. Hemingway from 3 companies from 2016 to 2022. The largest total came from Novo Nordisk Inc.
How long has Dr. Jennifer Gay Hemingway been practicing?
Dr. Hemingway graduated from medical school in 1992, 34 years ago.
Selling to internal medicine practices?
See internists in Michigan 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