Dr. Loretta M. Leja, MD
- Medicare services, 2019
- 835
- Part D claims, 2024
- 12,219
- Hospital affiliations
- 1
- Industry payments
- $12,429
- Medical group
- 1
- Practice address
- 1140 N State Street, Saint Ignace, MI 49781
- Practice phone
- Call (906) 643-8585
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Leja's professional email, personal email and mobile number
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Dr. Loretta M. Leja is a family medicine physician in Saint Ignace, Michigan
Dr. Leja practices at Mackinac Straits Hospital in Saint Ignace, Michigan, part of Mackinac Straits Health System.
Dr. Leja's NPI, 1831122324, was assigned on July 8, 2006. Dr. Leja graduated from Medical College of Wisconsin in 1979. Dr. Leja holds Michigan license 4301042693.
- NPI
- 1831122324NPI Registry (opens in a new tab)
- NPI enumeration date
- July 8, 2006
- NPI status
- Active
- Practice phone
- (906) 643-8585
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Loretta M. Leja practices at Mackinac Straits Hospital in Saint Ignace, Michigan
Dr. Leja's primary practice is Mackinac Straits Hospital, at 1140 N State Street, Saint Ignace, MI 49781 in Mackinac County. The practice phone is (906) 643-8585.
- Mackinac Straits Hospital1140 N State Street, Saint Ignace, MI 49781 · Mackinac CountyPhone(906) 643-8585
Source: Dmand AI Affiliation Data
Dr. Loretta M. Leja is affiliated with 2 sites of care and 1 medical group
Dr. Leja's primary practice is Mackinac Straits Hospital in Saint Ignace, Michigan, part of Mackinac Straits Health System. The medical group on file is Mackinac Straits Health System. Dmand AI also links Dr. Leja to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Loretta M. Leja's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leja practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mackinac Straits Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Mackinac Straits Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Loretta M. Leja is one of 4,931 family medicine physicians in Michigan
Family medicine is Dr. Leja's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Leja is licensed in Michigan.
Specialties and state licenses
- Family medicine, MichiganPrimary
Family medicine physicians near Dr. Leja
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. Loretta M. Leja billed Medicare for 835 services in 2019
CMS data shows 835 Medicare services from Dr. Leja across 7 procedure codes in 2019. Medicare paid $47,573 for them. Every service was in an office.
Dr. Leja's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 1492019: 632324%
- Drugs given in the office
- 2018: 02019: 91
- Other services
- 2018: 222019: 79259%
- Surgery
- 2018: 02019: 33
Dr. Leja compared with the Michigan median for family medicine physicians, 2019
- Dr. Leja
- Michigan median
- Medicare services
- 835vs 2483.4 times
- Part D claims
- 11,310vs 1,03310.9 times
Medians across 4,990 family medicine physicians in Michigan with Dmand AI profiles that report each measure.
Dr. Leja'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Leja and other family medicine physicians in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Loretta M. Leja's patients have a median age of 69
Across all payers, Dmand AI patient panel data puts Dr. Leja's median patient age at 69, with 68% women.
Dr. Leja's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women68%
- Men32%
Source: Dmand AI Patient Panel Data
Dr. Loretta M. Leja wrote 12,219 Medicare Part D claims in 2024
In 2024, Dr. Leja wrote 12,219 Medicare Part D claims for 645 patients. 86% of them were for generic drugs. CMS names the drug for 11,310 of them, across 179 drugs with 11 or more claims each, at $1,019,618 in total drug cost. In 2023, CMS named 10,227 claims across 167 drugs.
Dr. Leja's Part D claims by kind of drug, 2024
- Generic10,533 claims86%
- Brand-name1,579 claims13%
- Other107 claims1%
Dr. Leja'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.
Drug classes CMS tracks in Dr. Leja's Part D claims, 2024
- Opioids4%518 of 12,219 claims
- Antibiotics3%389 of 12,219 claims
- Antipsychotics, patients 65 and over1%88 of 12,219 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 10,2272024: 11,31011%
Drugs named by CMS: 179 in 2024, 167 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
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Dr. Loretta M. Leja received $12,429 in industry payments from 2016 to 2025
CMS Open Payments shows 684 general payments to Dr. Leja from 70 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. AstraZeneca Pharmaceuticals LP paid the most, $2,299.
General payments to Dr. Leja by program year, 2016 to 2025
General payments to Dr. Leja by kind, 2016 to 2025
- Food and beverage$12,30499%
- Education$1251%
Companies that paid Dr. Leja the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Loretta M. Leja graduated from Medical College of Wisconsin
Dr. Leja graduated from Medical College of Wisconsin in 1979.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Loretta M. Leja'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)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. Loretta M. Leja
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. Loretta M. Leja's NPI number?
Dr. Loretta M. Leja's NPI number is 1831122324. It was assigned on July 8, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Loretta M. Leja?
Dr. Loretta M. Leja is a family medicine physician in Saint Ignace, Michigan. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Loretta M. Leja practice?
Dr. Leja practices at 1140 N State Street, Saint Ignace, MI 49781. Dr. Leja's primary practice is Mackinac Straits Hospital in Saint Ignace, Michigan, part of Mackinac Straits Health System. Dmand AI also links Dr. Leja to 1 group practice or clinic.
What is Dr. Loretta M. Leja's office phone number?
The practice phone on file for Dr. Leja is (906) 643-8585.
What is Dr. Loretta M. Leja's medical license number?
Dr. Leja holds Michigan license 4301042693.
Which hospitals is Dr. Loretta M. Leja affiliated with?
Dr. Leja practices at Mackinac Straits Hospital in Saint Ignace, Michigan.
What medical group is Dr. Loretta M. Leja part of?
Dr. Leja is linked to Mackinac Straits Health System.
Does Dr. Loretta M. Leja accept Medicare?
Yes. CMS data shows Dr. Leja billed Medicare for 835 services in 2019.
What services does Dr. Loretta M. Leja bill to Medicare?
In 2019, Dr. Leja's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and injected or infused drug (J3301).
Where did Dr. Loretta M. Leja go to medical school?
Dr. Leja graduated from Medical College of Wisconsin in 1979.
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What drugs does Dr. Loretta M. Leja prescribe most?
In 2024 Medicare Part D data, Dr. Leja's most prescribed drugs by claims were Atorvastatin Calcium, Omeprazole and Lisinopril.
Has Dr. Loretta M. Leja received payments from drug or device companies?
CMS Open Payments shows $12,429 in general payments to Dr. Leja from 70 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Loretta M. Leja been practicing?
Dr. Leja graduated from medical school in 1979, 47 years ago.
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