Dr. Constance M. Leahy, MD
- Medicare services, 2019
- 17
- Part D claims, 2020
- 52
- Hospital affiliations
- 1
- Industry payments
- $26
- Medical groups
- 2
- Practice address
- 200 Jefferson Avenue SE, Grand Rapids, MI 49503
- Practice phone
- Call (616) 685-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Leahy'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. Constance M. Leahy is an OB-GYN in Grand Rapids, Michigan
Dr. Leahy practices at Trinity Health Grand Rapids Hospital in Grand Rapids, Michigan, part of Trinity Health.
Dr. Leahy's NPI, 1164477204, was assigned on May 24, 2006. Dr. Leahy graduated from Southern Illinois University School of Medicine in 1993. Dr. Leahy holds Michigan license 4301061615.
- NPI
- 1164477204NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6406851955
- NPI enumeration date
- May 24, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (616) 685-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Constance M. Leahy practices at Trinity Health Grand Rapids Hospital in Grand Rapids, Michigan
Dr. Leahy's primary practice is Trinity Health Grand Rapids Hospital, at 200 Jefferson Avenue SE, Grand Rapids, MI 49503 in Kent County. The practice phone is (616) 685-5000.
- Trinity Health Grand Rapids Hospital200 Jefferson Avenue SE, Grand Rapids, MI 49503 · Kent CountyPhone(616) 685-5000
Source: Dmand AI Affiliation Data
Dr. Constance M. Leahy is affiliated with 2 sites of care and 2 medical groups
Dr. Leahy's primary practice is Trinity Health Grand Rapids Hospital in Grand Rapids, Michigan, part of Trinity Health. The medical group on file is Trinity Health Medical Group. Dmand AI also links Dr. Leahy to 1 more group practice or clinic 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 Dr. Constance M. Leahy's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leahy practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Trinity Health Grand Rapids Hospital | Available with a free account |
| +1 more site 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 Trinity Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Constance M. Leahy is one of 1,457 OB-GYNs in Michigan
Obstetrics and gynecology is Dr. Leahy's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Leahy is licensed in Michigan.
Specialties and state licenses
- Obstetrics and gynecology, MichiganPrimary
OB-GYNs near Dr. Leahy
Counts of OB-GYNs 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. Constance M. Leahy billed Medicare for 17 services in 2019
CMS data shows 17 Medicare services from Dr. Leahy across 1 procedure code in 2019, all of them office visits. Medicare paid $577 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Leahy's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 192019: 1711%
Dr. Leahy compared with the Michigan median for OB-GYNs, 2019
- Dr. Leahy
- Michigan median
- Medicare services
- 17vs 3754% below
- Part D claims
- 52vs 3837% above
Medians across 1,227 OB-GYNs in Michigan with Dmand AI profiles that report each measure.
Dr. Leahy's most billed Medicare procedure codes, 2019
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. Leahy?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Leahy and other OB-GYNs in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Constance M. Leahy's patients have a median age of 33
Across all payers, Dmand AI patient panel data puts Dr. Leahy's median patient age at 33, with 100% women.
Dr. Leahy's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 33
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Constance M. Leahy wrote 52 Medicare Part D claims in 2020
In 2020, Dr. Leahy wrote 52 Medicare Part D claims. They cover 4 drugs, with $5,937 in total drug cost. In 2019, CMS named 33 claims across 2 drugs.
Dr. Leahy's most prescribed drugs by claims, 2020
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, 2019 to 2020
- 2019
- 2020
- Claims for drugs CMS names
- 2019: 332020: 5258%
Drugs named by CMS: 4 in 2020, 2 in 2019.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. Constance M. Leahy takes part in Medicare
Dr. Leahy 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. Constance M. Leahy received $26 in industry payments from 2017 to 2021
CMS Open Payments shows 2 general payments to Dr. Leahy from 2 drug and device companies from 2017 to 2021. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $13.
General payments to Dr. Leahy by program year, 2017 to 2021
Companies that paid Dr. Leahy the most, 2017 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Constance M. Leahy graduated from Southern Illinois University School of Medicine
Dr. Leahy graduated from Southern Illinois University School of Medicine in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Constance M. Leahy'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 Data |
| 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) |
| 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. Constance M. Leahy
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. Constance M. Leahy's NPI number?
Dr. Constance M. Leahy's NPI number is 1164477204. It was assigned on May 24, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Constance M. Leahy?
Dr. Constance M. Leahy is an OB-GYN in Grand Rapids, Michigan. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Constance M. Leahy practice?
Dr. Leahy practices at 200 Jefferson Avenue SE, Grand Rapids, MI 49503. Dr. Leahy's primary practice is Trinity Health Grand Rapids Hospital in Grand Rapids, Michigan, part of Trinity Health. Dmand AI also links Dr. Leahy to 1 group practice or clinic and 1 medical group.
What is Dr. Constance M. Leahy's office phone number?
The practice phone on file for Dr. Leahy is (616) 685-5000.
What is Dr. Constance M. Leahy's medical license number?
Dr. Leahy holds Michigan license 4301061615.
Which hospitals is Dr. Constance M. Leahy affiliated with?
Dr. Leahy practices at Trinity Health Grand Rapids Hospital in Grand Rapids, Michigan.
What medical group is Dr. Constance M. Leahy part of?
Dr. Leahy is linked to Trinity Health Medical Group. Dmand AI links Dr. Leahy to 1 more medical group.
Does Dr. Constance M. Leahy accept Medicare?
Yes. CMS data shows Dr. Leahy billed Medicare for 17 services in 2019, and Dr. Leahy accepts Medicare assignment.
What services does Dr. Constance M. Leahy bill to Medicare?
In 2019, Dr. Leahy's most billed Medicare services were office visit, established patient (99213).
Where did Dr. Constance M. Leahy go to medical school?
Dr. Leahy graduated from Southern Illinois University School of Medicine in 1993.
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What drugs does Dr. Constance M. Leahy prescribe most?
In 2020 Medicare Part D data, Dr. Leahy's most prescribed drugs by claims were Estradiol (Twice Weekly), Progesterone and Estradiol.
Has Dr. Constance M. Leahy received payments from drug or device companies?
CMS Open Payments shows $26 in general payments to Dr. Leahy from 2 companies from 2017 to 2021. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Constance M. Leahy been practicing?
Dr. Leahy graduated from medical school in 1993, 33 years ago.
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