AlgorithmsCatheterization, PeripheralClinical Competence
Dr. John C. Baker Jr., DO
NPI1386063733
- Medicare services, 2022
- 350
- Part D claims, 2024
- 109
- Publications
- 2
- Hospital affiliations
- 1
- Industry payments
- $102
- Practice address
- 1044 Belmont Ave, Youngstown, OH 44504
- Practice phone
- Call (513) 952-5065
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
St Elizabeth Youngstown Hospital
Youngstown, Ohio
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. John C. Baker Jr. is a hospitalist in Youngstown, Ohio
Dr. Baker practices at St Elizabeth Youngstown Hospital in Youngstown, Ohio.
Dr. Baker's NPI, 1386063733, was assigned on April 14, 2014. Dr. Baker graduated from Lake Erie College of Osteopathic Medicine, Erie in 2014. Dr. Baker holds Ohio license 34.012019.
NPI and contact details
- NPI
- 1386063733NPI Registry (opens in a new tab)
- NPI enumeration date
- April 14, 2014
- NPI status
- Active
- Practice phone
- (513) 952-5065
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. John C. Baker Jr. practices at St Elizabeth Youngstown Hospital in Youngstown, Ohio
Dr. Baker's primary practice is St Elizabeth Youngstown Hospital, at 1044 Belmont Ave, Youngstown, OH 44504 in Mahoning County. The practice phone is (513) 952-5065.
- St Elizabeth Youngstown Hospital1044 Belmont Ave, Youngstown, OH 44504 · Mahoning CountyPhone(513) 952-5065
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John C. Baker Jr. is affiliated with 2 sites of care and 3 medical groups
Dr. Baker's primary practice is St Elizabeth Youngstown Hospital in Youngstown, Ohio. Dr. Baker is also affiliated with University Hospitals St. John Medical Center. The medical group on file is University Hospitals Medical Practices. Dmand AI also links Dr. Baker to 2 more medical groups, each named with a free account.
St Elizabeth Youngstown HospitalPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John C. Baker Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Baker practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St Elizabeth Youngstown Hospital | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every site where Dr. Baker practices
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. John C. Baker Jr. is one of 991 hospitalists in Ohio
Hospitalist is Dr. Baker's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Baker is licensed in Ohio.
Specialties and state licenses
- Hospitalist, OhioPrimary
Hospitalists near Dr. Baker
Counts of hospitalists 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. John C. Baker Jr. billed Medicare for 350 services in 2022
CMS data shows 350 Medicare services from Dr. Baker across 8 procedure codes in 2022. Medicare paid $32,086 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2022350
Paid by Medicare$32,086
Procedure codes8
Dr. Baker's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 8062022: 35057%
Dr. Baker compared with the Ohio median for hospitalists, 2022
- Dr. Baker
- Ohio median
- Medicare services
- 350vs 31013% above
- Part D claims
- 33vs 6448% below
Medians across 898 hospitalists in Ohio with Dmand AI profiles that report each measure.
Dr. Baker's most billed Medicare procedure codes, 2022
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. Baker?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Baker and other hospitalists in Ohio.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John C. Baker Jr.'s patients have a median age of 55
Across all payers, Dmand AI patient panel data puts Dr. Baker's median patient age at 55, with 67% 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 55
Patient panel by sex, all payers
- Women67%
- Men28%
Source: Dmand AI Patient Panel Data
Dr. John C. Baker Jr. wrote 109 Medicare Part D claims in 2024
In 2024, Dr. Baker wrote 109 Medicare Part D claims for 72 patients. 88% of them were for generic drugs. CMS names the drug for 33 of them, across 2 drugs with 11 or more claims each, at $442 in total drug cost. In 2019, CMS named 115 claims across 9 drugs.
Part D claims, 2024109
Drugs named by CMS2
Total drug cost$442
Part D patients72
Dr. Baker's Part D claims by kind of drug, 2024
- Generic96 claims88%
- Brand-name13 claims12%
Dr. Baker'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. Baker's Part D claims, 2024
- Antibiotics31%34 of 109 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, 2019 to 2024
- 2019
- 2024
- Claims for drugs CMS names
- 2019: 1152024: 3371%
Drugs named by CMS: 2 in 2024, 9 in 2019.
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
Find hospitalists like Dr. Baker by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. John C. Baker Jr. has 2 publications on record
Dmand AI links 2 papers to Dr. Baker, published from 2011 to 2017. Dr. Baker's most frequent co-author is Charles Bartlett Foster, MD.
Papers2
Years published2011 to 2017
Dr. Baker's most frequent co-authors
Recent publications by Dr. Baker
Am J Infect Control
ColorCuesGuideline Adherence
See who Dr. Baker researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Baker works with, so you can find a warm path to the right hospitalists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John C. Baker Jr. received $102 in industry payments from 2017 to 2025
CMS Open Payments shows 3 general payments to Dr. Baker from 3 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Lundbeck LLC paid the most, $65.
General payments to Dr. Baker by program year, 2017 to 2025
Companies that paid Dr. Baker the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John C. Baker Jr. graduated from Lake Erie College of Osteopathic Medicine, Erie
Dr. Baker graduated from Lake Erie College of Osteopathic Medicine, Erie in 2014.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John C. Baker Jr.'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. John C. Baker Jr.
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. John C. Baker Jr.'s NPI number?
Dr. John C. Baker Jr.'s NPI number is 1386063733. It was assigned on April 14, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. John C. Baker Jr.?
Dr. John C. Baker Jr. is a hospitalist in Youngstown, Ohio. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. John C. Baker Jr. practice?
Dr. Baker practices at 1044 Belmont Ave, Youngstown, OH 44504. Dr. Baker's primary practice is St Elizabeth Youngstown Hospital in Youngstown, Ohio. Dmand AI also links Dr. Baker to 2 medical groups.
What is Dr. John C. Baker Jr.'s office phone number?
The practice phone on file for Dr. Baker is (513) 952-5065.
What is Dr. John C. Baker Jr.'s medical license number?
Dr. Baker holds Ohio license 34.012019.
Which hospitals is Dr. John C. Baker Jr. affiliated with?
Dr. Baker is affiliated with University Hospitals St. John Medical Center.
What medical group is Dr. John C. Baker Jr. part of?
Dr. Baker is linked to University Hospitals Medical Practices. Dmand AI links Dr. Baker to 2 more medical groups.
Does Dr. John C. Baker Jr. accept Medicare?
Yes. CMS data shows Dr. Baker billed Medicare for 350 services in 2022.
What services does Dr. John C. Baker Jr. bill to Medicare?
In 2022, Dr. Baker's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99223).
Where did Dr. John C. Baker Jr. go to medical school?
Dr. Baker graduated from Lake Erie College of Osteopathic Medicine, Erie in 2014.
Show 5 more questionsShow fewer questions
What drugs does Dr. John C. Baker Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Baker's most prescribed drugs by claims were Amoxicillin-Clavulanate Potass and Ipratropium Bromide.
Has Dr. John C. Baker Jr. received payments from drug or device companies?
CMS Open Payments shows $102 in general payments to Dr. Baker from 3 companies from 2017 to 2025. The largest total came from Lundbeck LLC.
How long has Dr. John C. Baker Jr. been practicing?
Dr. Baker graduated from medical school in 2014, 12 years ago.
Does Dr. John C. Baker Jr. do research?
Dmand AI links 2 publications to Dr. Baker, published from 2011 to 2017.
Who does Dr. John C. Baker Jr. publish with?
Dr. Baker's most frequent co-authors are Charles Bartlett Foster, MD (1 shared paper).
Selling to hospitalist practices?
See hospitalists in Ohio 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