Dr. James Michael Oaks, DO

  • Marysville, OH
  • Psychiatrist
NPI1083690382
Medicare services, 2016
189
Part D claims, 2024
425
Hospital affiliations
1
Medical group
1
State license
1
Practice address
500 London Avenue, Marysville, OH 43040
Practice phone
Call (937) 644-6115
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Memorial Hospital

Hospital · Marysville, Ohio

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Dr. James Michael Oaks is a psychiatrist in Marysville, Ohio

Dr. Oaks practices at Memorial Hospital in Marysville, Ohio, part of Union County, Ohio.

Dr. Oaks' NPI, 1083690382, was assigned on December 19, 2005. Dr. Oaks holds Ohio license 34007130.

NPI and contact details
NPI enumeration date
December 19, 2005
NPI status
Active
Practice phone
(937) 644-6115
Professional email
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Personal email
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Mobile number
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Sex
Male

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data

Dr. James Michael Oaks practices at Memorial Hospital in Marysville, Ohio

Dr. Oaks' primary practice is Memorial Hospital, at 500 London Avenue, Marysville, OH 43040 in Union County. The practice phone is (937) 644-6115.

  • Memorial Hospital
    500 London Avenue, Marysville, OH 43040 · Union CountyPhone(937) 644-6115

Source: Dmand AI Affiliation Data

Dr. James Michael Oaks is affiliated with 1 site of care and 1 medical group

Dr. Oaks' primary practice is Memorial Hospital in Marysville, Ohio, part of Union County, Ohio. The medical group on file is Summit Behavioral Healthcare.

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. James Michael Oaks' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Oaks practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Memorial HospitalAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. James Michael Oaks is one of 1,227 psychiatrists in Ohio

Psychiatry is Dr. Oaks' primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Oaks is licensed in Ohio.

Specialties and state licenses

  • Psychiatry, OhioPrimaryLicense 34.007130 · taxonomy 2084P0800X

Psychiatrists near Dr. Oaks

Counts of psychiatrists 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. James Michael Oaks billed Medicare for 189 services in 2016

CMS data shows 189 Medicare services from Dr. Oaks across 3 procedure codes in 2016. Medicare paid $8,703 for them.

Medicare services, 2016189
Paid by Medicare$8,703
Procedure codes3

Dr. Oaks' Medicare services by type, 2016

  1. Office and hospital visits158
  2. Tests and treatments31

Where Dr. Oaks' Medicare services took place, 2016

  • In an office3116%
  • In a facility15884%

Dr. Oaks compared with the Ohio median for psychiatrists, 2016

  • Dr. Oaks
  • Ohio median
Medicare services
189vs 13144% above
Part D claims
351vs 25438% above

Medians across 1,320 psychiatrists in Ohio with Dmand AI profiles that report each measure.

Dr. Oaks' most billed Medicare procedure codes, 2016

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. James Michael Oaks' patients have a median age of 42

Across all payers, Dmand AI patient panel data puts Dr. Oaks' median patient age at 42, with 64% women.

Dr. Oaks' patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 42

Patient panel by sex, all payers

  • Women64%
  • Men36%

Source: Dmand AI Patient Panel Data

Dr. James Michael Oaks wrote 425 Medicare Part D claims in 2024

In 2024, Dr. Oaks wrote 425 Medicare Part D claims for 27 patients. 99% of them were for generic drugs. CMS names the drug for 351 of them, across 9 drugs with 11 or more claims each, at $56,460 in total drug cost. In 2023, CMS named 345 claims across 11 drugs.

Part D claims, 2024425
Drugs named by CMS9
Total drug cost$56,460
Part D patients27

Dr. Oaks' Part D claims by kind of drug, 2024

  • Generic421 claims99%
  • Brand-name and other4 claims1%

Dr. Oaks' 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. Oaks' Part D claims, 2024

  • Antipsychotics, patients 65 and over7%28 of 425 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: 3452024: 3512%

Drugs named by CMS: 9 in 2024, 11 in 2023.

See all prescribing by Dr. Oaks

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. James Michael Oaks's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare 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 siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. James Michael Oaks

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. James Michael Oaks' NPI number?

Dr. James Michael Oaks' NPI number is 1083690382. It was assigned on December 19, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. James Michael Oaks?

Dr. James Michael Oaks is a psychiatrist in Marysville, Ohio. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).

Where does Dr. James Michael Oaks practice?

Dr. Oaks practices at 500 London Avenue, Marysville, OH 43040. Dr. Oaks' primary practice is Memorial Hospital in Marysville, Ohio, part of Union County, Ohio.

What is Dr. James Michael Oaks' office phone number?

The practice phone on file for Dr. Oaks is (937) 644-6115.

What is Dr. James Michael Oaks' medical license number?

Dr. Oaks holds Ohio license 34007130.

Which hospitals is Dr. James Michael Oaks affiliated with?

Dr. Oaks practices at Memorial Hospital in Marysville, Ohio.

What medical group is Dr. James Michael Oaks part of?

Dr. Oaks is linked to Summit Behavioral Healthcare.

Does Dr. James Michael Oaks accept Medicare?

Yes. CMS data shows Dr. Oaks billed Medicare for 189 services in 2016.

What services does Dr. James Michael Oaks bill to Medicare?

In 2016, Dr. Oaks' most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and psychiatric service (90792).

What drugs does Dr. James Michael Oaks prescribe most?

In 2024 Medicare Part D data, Dr. Oaks' most prescribed drugs by claims were Chlorpromazine HCl, Buprenorphine-Naloxone and Lorazepam.

How long has Dr. James Michael Oaks been practicing?

Dr. Oaks' NPI was assigned in 2005.

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