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Dr. John Maurice Mahan, MD
NPI1558652693PAC ID1153551692
- Medicare services, 2024
- 1,139
- Medicare patients, 2024
- 361
- Part D claims, 2024
- 880
- Publications
- 1
- Hospital affiliations
- 1
- Practice address
- 140 South Holly Street, Medford, OR 97501
- Practice phone
- Call (541) 774-3333
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Jackson County Mental Health Services
Outpatient Mental Health Clinic · Medford, Oregon
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Dr. John Maurice Mahan is a psychiatrist in Medford, Oregon
Dr. Mahan practices at Jackson County Mental Health Services in Medford, Oregon.
Dr. Mahan's NPI, 1558652693, was assigned on April 24, 2011. Dr. Mahan graduated from Oregon Health & Sciences Univ School of Dentistry in 2011. Dr. Mahan holds Oregon license MD176522.
NPI and contact details
- NPI
- 1558652693NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1153551692
- NPI enumeration date
- April 24, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (541) 774-3333
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Maurice Mahan practices at Jackson County Mental Health Services in Medford, Oregon
Dr. Mahan's primary practice is Jackson County Mental Health Services, at 140 South Holly Street, Medford, OR 97501. The practice phone is (541) 774-3333.
- Jackson County Mental Health Services140 South Holly Street, Medford, OR 97501Phone(541) 774-3333
Source: Dmand AI Affiliation Data
Dr. John Maurice Mahan is affiliated with 3 sites of care and 1 medical group
Dr. Mahan's primary practice is Jackson County Mental Health Services in Medford, Oregon. Dr. Mahan is also affiliated with Asante Rogue Regional Medical Center. The medical group on file is Jackson County Mental Health Services. Dmand AI also links Dr. Mahan to 1 more group practice or clinic, named with a free account. Dr. Mahan's employer is on file too: a behavioral health center.
Jackson County Mental Health ServicesPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Maurice Mahan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mahan practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Jackson County Mental Health Services | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Maurice Mahan is one of 503 psychiatrists in Oregon
Psychiatry is Dr. Mahan's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Mahan is licensed in Oregon.
Specialties and state licenses
- Psychiatry, OregonPrimary
Psychiatrists near Dr. Mahan
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. John Maurice Mahan billed Medicare for 1,139 services in 2024
CMS data shows 1,139 Medicare services from Dr. Mahan across 5 procedure codes in 2024, for 361 Medicare patients. Medicare paid $81,506 for them. Every service was in an office.
Medicare services, 20241,139
Medicare patients361
Paid by Medicare$81,506
Procedure codes5
Dr. Mahan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 02024: 909
- Other services
- 2023: 02024: 230
- Office and hospital visits
- 2023: 912024: 0100%
Dr. Mahan compared with the Oregon median for psychiatrists, 2024
- Dr. Mahan
- Oregon median
- Medicare services
- 1,139vs 8912.8 times
- Medicare patients
- 361vs 3410.6 times
- Part D claims
- 799vs 908.9 times
Medians across 549 psychiatrists in Oregon with Dmand AI profiles that report each measure.
Dr. Mahan's most billed Medicare procedure codes, 2024
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. Mahan and other psychiatrists in Oregon.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Maurice Mahan treated 361 Medicare patients in 2024, average age 75
CMS counts 361 Medicare patients who saw Dr. Mahan in 2024. The largest group is 75 to 84, with 153 patients. 64% of them have high cholesterol, and 52% have high blood pressure. 8% are also on Medicaid. Their average risk score is 0.84, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Mahan's median patient age at 48, with 55% women.
Medicare patients, 2024361
Average age75
Average risk score0.84
Also on Medicaid8%
Dr. Mahan's Medicare patients by age, 2024
Dr. Mahan's Medicare patients by sex, 2024
- Women19955%
- Men16245%
Chronic conditions among Dr. Mahan's Medicare patients, 2024
- High cholesterol64%
- High blood pressure52%
- Arthritis42%
- Osteoporosis20%
- Cancer18%
- Mood disorders18%
- Anxiety17%
- Depression14%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mahan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 48
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Maurice Mahan wrote 880 Medicare Part D claims in 2024
In 2024, Dr. Mahan wrote 880 Medicare Part D claims for 31 patients. 95% of them were for generic drugs. CMS names the drug for 799 of them, across 26 drugs with 11 or more claims each, at $114,516 in total drug cost. In 2023, CMS named 1,439 claims across 37 drugs.
Part D claims, 2024880
Drugs named by CMS26
Total drug cost$114,516
Part D patients31
Dr. Mahan's Part D claims by kind of drug, 2024
- Generic837 claims95%
- Brand-name43 claims5%
Dr. Mahan'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. Mahan's Part D claims, 2024
- Antipsychotics, patients 65 and over6%57 of 880 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: 1,4392024: 79944%
Drugs named by CMS: 26 in 2024, 37 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
Dr. John Maurice Mahan offers telehealth to Medicare patients
Dr. Mahan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Mahan as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. John Maurice Mahan has 1 publication on record
Dmand AI links 1 paper to Dr. Mahan in 2023. Dr. Mahan's most frequent co-authors are Christopher Kynrint Blazes, MD, Brian Chan, MD and Honora L. Englander, MD.
Papers1
Dr. Mahan's most frequent co-authors
- Christopher Kynrint Blazes, MD1 shared paper
- Brian Chan, MD1 shared paper
- Honora L. Englander, MD1 shared paper
Recent publications by Dr. Mahan
See who Dr. Mahan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Mahan works with, so you can find a warm path to the right psychiatrists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John Maurice Mahan graduated from Oregon Health & Sciences Univ School of Dentistry
Dr. Mahan graduated from Oregon Health & Sciences Univ School of Dentistry in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Maurice Mahan'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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 Maurice Mahan
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 Maurice Mahan's NPI number?
Dr. John Maurice Mahan's NPI number is 1558652693. It was assigned on April 24, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. John Maurice Mahan?
Dr. John Maurice Mahan is a psychiatrist in Medford, Oregon. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. John Maurice Mahan practice?
Dr. Mahan practices at 140 South Holly Street, Medford, OR 97501. Dr. Mahan's primary practice is Jackson County Mental Health Services in Medford, Oregon. Dmand AI also links Dr. Mahan to 1 group practice or clinic.
What is Dr. John Maurice Mahan's office phone number?
The practice phone on file for Dr. Mahan is (541) 774-3333.
What is Dr. John Maurice Mahan's medical license number?
Dr. Mahan holds Oregon license MD176522.
Which hospitals is Dr. John Maurice Mahan affiliated with?
Dr. Mahan is affiliated with Asante Rogue Regional Medical Center.
What medical group is Dr. John Maurice Mahan part of?
Dr. Mahan is linked to Jackson County Mental Health Services.
Does Dr. John Maurice Mahan accept Medicare?
Yes. CMS data shows Dr. Mahan billed Medicare for 1,139 services in 2024, and Dr. Mahan accepts Medicare assignment.
Does Dr. John Maurice Mahan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Mahan as offering telehealth services.
How many Medicare patients does Dr. John Maurice Mahan see?
CMS counts 361 Medicare patients who saw Dr. Mahan in 2024, with an average age of 75.
Show 6 more questionsShow fewer questions
What services does Dr. John Maurice Mahan bill to Medicare?
In 2024, Dr. Mahan's most billed Medicare services were vaccine or vaccine administration (90480), medical service (91322) and medicare service (G0008).
Where did Dr. John Maurice Mahan go to medical school?
Dr. Mahan graduated from Oregon Health & Sciences Univ School of Dentistry in 2011.
What drugs does Dr. John Maurice Mahan prescribe most?
In 2024 Medicare Part D data, Dr. Mahan's most prescribed drugs by claims were Clozapine, Duloxetine HCl and Prazosin HCl.
How long has Dr. John Maurice Mahan been practicing?
Dr. Mahan graduated from medical school in 2011, 15 years ago.
Does Dr. John Maurice Mahan do research?
Dmand AI links 1 publication to Dr. Mahan.
Who does Dr. John Maurice Mahan publish with?
Dr. Mahan's most frequent co-authors are Christopher Kynrint Blazes, MD (1 shared paper), Brian Chan, MD (1 shared paper) and Honora L. Englander, MD (1 shared paper).
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