Dr. Mark F. Leonard, MD
- Medicare services, 2018
- 102
- Part D claims, 2024
- 98
- Hospital affiliations
- 3
- Medical groups
- 5
- State license
- 1
- Practice address
- 507 Hospital Way, Brewster, WA 98812
- Practice phone
- Call (509) 689-2517
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Leonard'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. Mark F. Leonard is an emergency medicine physician in Brewster, Washington
Dr. Leonard practices at Three Rivers Hospital in Brewster, Washington, part of Three Rivers Hospital.
Dr. Leonard's NPI, 1720023559, was assigned on June 17, 2006. Dr. Leonard graduated from Michigan State University College of Human Medicine in 1987. Dr. Leonard holds Washington license MD00027106.
- NPI
- 1720023559NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6901999457
- NPI enumeration date
- June 17, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (509) 689-2517
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark F. Leonard practices at Three Rivers Hospital in Brewster, Washington
Dr. Leonard's primary practice is Three Rivers Hospital, at 507 Hospital Way, Brewster, WA 98812 in Okanogan County. The practice phone is (509) 689-2517.
- Three Rivers Hospital507 Hospital Way, Brewster, WA 98812 · Okanogan CountyPhone(509) 689-2517
Source: Dmand AI Affiliation Data
Dr. Mark F. Leonard is affiliated with 3 sites of care and 5 medical groups
Dr. Leonard's primary practice is Three Rivers Hospital in Brewster, Washington, part of Three Rivers Hospital. Dr. Leonard is also affiliated with Forks Community Hospital. The medical group on file is Forks Community Hospital. Dmand AI also links Dr. Leonard to 1 more hospital and 4 medical groups, 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. Mark F. Leonard's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leonard practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Three Rivers Hospital | Available with a free account |
| +2 more sites and 4 medical groups | 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 Three Rivers Hospital and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mark F. Leonard is one of 1,408 emergency medicine physicians in Washington
Emergency medicine is Dr. Leonard's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Leonard is licensed in Washington.
Specialties and state licenses
- Emergency medicine, WashingtonPrimary
Emergency medicine physicians near Dr. Leonard
Counts of emergency 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. Mark F. Leonard billed Medicare for 102 services in 2018
CMS data shows 102 Medicare services from Dr. Leonard across 3 procedure codes in 2018. Medicare paid $11,402 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Leonard's Medicare services by type, 2017 to 2018
- 2017
- 2018
- Office and hospital visits
- 2017: 2882018: 10265%
- Tests and treatments
- 2017: 832018: 0100%
Dr. Leonard compared with the Washington median for emergency medicine physicians, 2018
- Dr. Leonard
- Washington median
- Medicare services
- 102vs 26862% below
- Part D claims
- 81vs 6133% above
Medians across 1,440 emergency medicine physicians in Washington with Dmand AI profiles that report each measure.
Dr. Leonard's most billed Medicare procedure codes, 2018
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. Leonard?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Leonard and other emergency medicine physicians in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark F. Leonard's patients have a median age of 69
Across all payers, Dmand AI patient panel data puts Dr. Leonard's median patient age at 69, with 62% women.
Dr. Leonard'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
- Women62%
- Men38%
Source: Dmand AI Patient Panel Data
Dr. Mark F. Leonard wrote 98 Medicare Part D claims in 2024
In 2024, Dr. Leonard wrote 98 Medicare Part D claims for 66 patients. 92% of them were for generic drugs. CMS names the drug for 81 of them, across 5 drugs with 11 or more claims each, at $484 in total drug cost. In 2016, CMS named 187 claims across 9 drugs.
Dr. Leonard's Part D claims by kind of drug, 2024
- Generic90 claims92%
- Brand-name and other8 claims8%
Dr. Leonard's most prescribed drugs by claims, 2017
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. Leonard's Part D claims, 2024
- Opioids11%11 of 98 claims
- Antibiotics37%36 of 98 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, 2016 to 2017
- 2016
- 2017
- Claims for drugs CMS names
- 2016: 1872017: 8157%
Drugs named by CMS: 5 in 2017, 9 in 2016.
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. Mark F. Leonard takes part in Medicare
Dr. Leonard 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. Mark F. Leonard graduated from Michigan State University College of Human Medicine
Dr. Leonard graduated from Michigan State University College of Human Medicine in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark F. Leonard'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Mark F. Leonard
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. Mark F. Leonard's NPI number?
Dr. Mark F. Leonard's NPI number is 1720023559. It was assigned on June 17, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark F. Leonard?
Dr. Mark F. Leonard is an emergency medicine physician in Brewster, Washington. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Mark F. Leonard practice?
Dr. Leonard practices at 507 Hospital Way, Brewster, WA 98812. Dr. Leonard's primary practice is Three Rivers Hospital in Brewster, Washington, part of Three Rivers Hospital. Dmand AI also links Dr. Leonard to 1 hospital and 4 medical groups.
What is Dr. Mark F. Leonard's office phone number?
The practice phone on file for Dr. Leonard is (509) 689-2517.
What is Dr. Mark F. Leonard's medical license number?
Dr. Leonard holds Washington license MD00027106.
Which hospitals is Dr. Mark F. Leonard affiliated with?
Dr. Leonard practices at Three Rivers Hospital in Brewster, Washington. Dr. Leonard is also affiliated with Forks Community Hospital. Dmand AI links Dr. Leonard to 1 more hospital.
What medical group is Dr. Mark F. Leonard part of?
Dr. Leonard is linked to Forks Community Hospital. Dmand AI links Dr. Leonard to 4 more medical groups.
Does Dr. Mark F. Leonard accept Medicare?
Yes. CMS data shows Dr. Leonard billed Medicare for 102 services in 2018, and Dr. Leonard accepts Medicare assignment.
What services does Dr. Mark F. Leonard bill to Medicare?
In 2018, Dr. Leonard's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and emergency department visit (99283).
Where did Dr. Mark F. Leonard go to medical school?
Dr. Leonard graduated from Michigan State University College of Human Medicine in 1987.
What drugs does Dr. Mark F. Leonard prescribe most?
In 2017 Medicare Part D data, Dr. Leonard's most prescribed drugs by claims were Ondansetron ODT, Hydrocodone-Acetaminophen and Oxycodone-Acetaminophen.
How long has Dr. Mark F. Leonard been practicing?
Dr. Leonard graduated from medical school in 1987, 39 years ago.
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