Dr. Donald James Baker, MD
- Medicare services, 2019
- 150
- Part D claims, 2024
- 22
- Hospital affiliations
- 1
- Medical groups
- 2
- State licenses
- 2
- Practice address
- 1222 E Woodland Ave, Barron, WI 54812
- Practice phone
- Call (715) 537-3186
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Baker'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. Donald James Baker is an emergency medicine physician in Barron, Wisconsin
Dr. Baker practices at Mayo Clinic Health System in Barron in Barron, Wisconsin, part of Mayo Clinic.
Dr. Baker's NPI, 1841390341, was assigned on September 24, 2006. Dr. Baker holds New York license 223802-1.
- NPI
- 1841390341NPI Registry (opens in a new tab)
- NPI enumeration date
- September 24, 2006
- NPI status
- Active
- Practice phone
- (715) 537-3186
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 78
- Medical school graduation
- 1974
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Donald James Baker practices at Mayo Clinic Health System in Barron in Barron, Wisconsin
Dr. Baker's primary practice is Mayo Clinic Health System in Barron, at 1222 E Woodland Ave, Barron, WI 54812 in Barron County. The practice phone is (715) 537-3186.
- Mayo Clinic Health System in Barron1222 E Woodland Ave, Barron, WI 54812 · Barron CountyPhone(715) 537-3186
Source: Dmand AI Affiliation Data
Dr. Donald James Baker is affiliated with 3 sites of care and 2 medical groups
Dr. Baker's primary practice is Mayo Clinic Health System in Barron in Barron, Wisconsin, part of Mayo Clinic. The medical group on file is Mayo Clinic Health System in La Crosse. Dmand AI also links Dr. Baker to 2 more group practices and clinics 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. Donald James Baker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Baker practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mayo Clinic Health System in Barron | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Donald James Baker is one of 1,211 emergency medicine physicians in Wisconsin
Emergency medicine is Dr. Baker's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Baker's licenses on file in 2 states: New York and Wisconsin.
Specialties and state licenses
- Emergency medicine, New YorkPrimary
- Family medicine, Wisconsin
Emergency medicine physicians near Dr. Baker
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. Donald James Baker billed Medicare for 150 services in 2019
CMS data shows 150 Medicare services from Dr. Baker across 3 procedure codes in 2019. Medicare paid $18,012 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Baker's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 3292019: 15054%
- Tests and treatments
- 2018: 662019: 0100%
Dr. Baker compared with the Wisconsin median for emergency medicine physicians, 2019
- Dr. Baker
- Wisconsin median
- Medicare services
- 150vs 24639% below
- Part D claims
- 11vs 5781% below
Medians across 1,249 emergency medicine physicians in Wisconsin with Dmand AI profiles that report each measure.
Dr. Baker'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Donald James Baker's patients have a median age of 43
Across all payers, Dmand AI patient panel data puts Dr. Baker's median patient age at 43, with 65% women.
Dr. Baker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women65%
- Men35%
Source: Dmand AI Patient Panel Data
Dr. Donald James Baker wrote 22 Medicare Part D claims in 2024
In 2024, Dr. Baker wrote 22 Medicare Part D claims for 15 patients. 95% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $190 in total drug cost. In 2020, CMS named 12 claims across 1 drug.
Dr. Baker's Part D claims by kind of drug, 2024
- Generic21 claims95%
- Brand-name and other1 claims5%
Dr. Baker's most prescribed drugs by claims, 2022
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, 2020 to 2022
- 2020
- 2022
- Claims for drugs CMS names
- 2020: 122022: 118%
Drugs named by CMS: 1 in 2022, 1 in 2020.
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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Sources for Dr. Donald James Baker'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) |
| 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. Donald James Baker
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. Donald James Baker's NPI number?
Dr. Donald James Baker's NPI number is 1841390341. It was assigned on September 24, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Donald James Baker?
Dr. Donald James Baker is an emergency medicine physician in Barron, Wisconsin. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Donald James Baker practice?
Dr. Baker practices at 1222 E Woodland Ave, Barron, WI 54812. Dr. Baker's primary practice is Mayo Clinic Health System in Barron in Barron, Wisconsin, part of Mayo Clinic. Dmand AI also links Dr. Baker to 2 group practices and clinics and 1 medical group.
What is Dr. Donald James Baker's office phone number?
The practice phone on file for Dr. Baker is (715) 537-3186.
What is Dr. Donald James Baker's medical license number?
Dr. Baker holds New York license 223802-1, one of the licenses on file in 2 states.
Which states has Dr. Donald James Baker been licensed in?
Dmand AI has state licenses on file for Dr. Baker in New York and Wisconsin.
Which hospitals is Dr. Donald James Baker affiliated with?
Dr. Baker practices at Mayo Clinic Health System in Barron in Barron, Wisconsin.
What medical group is Dr. Donald James Baker part of?
Dr. Baker is linked to Mayo Clinic Health System in La Crosse. Dmand AI links Dr. Baker to 1 more medical group.
Does Dr. Donald James Baker accept Medicare?
Yes. CMS data shows Dr. Baker billed Medicare for 150 services in 2019.
What services does Dr. Donald James Baker bill to Medicare?
In 2019, Dr. Baker's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and emergency department visit (99283).
What drugs does Dr. Donald James Baker prescribe most?
In 2022 Medicare Part D data, Dr. Baker's most prescribed drugs by claims were Nitrofurantoin Mono-Macro.
How long has Dr. Donald James Baker been practicing?
Dr. Baker graduated from medical school in 1974, 52 years ago.
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