Dr. John William Fenton, MD

  • Oakland, CA
  • Psychiatrist
NPI1154478550PAC ID3375575053
Medicare services, 2024
536
Medicare patients, 2024
68
Part D claims, 2024
106
Publications
10
MIPS score, 2024
95
Practice address
1411 East 31st Street, Oakland, CA 94602
Practice phone
Call (510) 437-4800
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Alameda Health System - Highland Hospital

Hospital · Oakland, California

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Dr. John William Fenton is a psychiatrist in Oakland, California

Dr. Fenton practices at Alameda Health System - Highland Hospital in Oakland, California, part of Alameda County.

Dr. Fenton's NPI, 1154478550, was assigned on January 5, 2007. Dr. Fenton graduated from American University of the Caribbean School of Medicine in 2002. Dr. Fenton holds California license A96589.

NPI and contact details
Medicare PAC ID
3375575053
NPI enumeration date
January 5, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(510) 437-4800
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
50
Medical school graduation
2002

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. John William Fenton practices at Alameda Health System - Highland Hospital in Oakland, California

Dr. Fenton's primary practice is Alameda Health System - Highland Hospital, at 1411 East 31st Street, Oakland, CA 94602 in Alameda County. The practice phone is (510) 437-4800.

Source: Dmand AI Affiliation Data

Dr. John William Fenton is affiliated with 2 sites of care and 1 medical group

Dr. Fenton's primary practice is Alameda Health System - Highland Hospital in Oakland, California, part of Alameda County. The medical group on file is Alameda Health System. Dmand AI also links Dr. Fenton to 1 more community health center, named with a free account.

See all 3 affiliations for Dr. Fenton

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

Dmand AI tracks the EHR system at Dr. John William Fenton's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fenton practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Alameda Health System - Highland HospitalAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. John William Fenton is one of 6,803 psychiatrists in California

Psychiatry is Dr. Fenton's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dmand AI has Dr. Fenton's licenses on file in 2 states: California and Louisiana.

Specialties and state licenses

  • Psychiatry, CaliforniaPrimaryLicense A96589 · 2006 to 2026 · taxonomy 2084P0800X
  • Louisiana license2006 to 2007

Clinical focus

Dmand AI lists psychological distress, psychoses and substance abuse among the conditions Dr. Fenton treats.

Psychiatrists near Dr. Fenton

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 William Fenton billed Medicare for 536 services in 2024

CMS data shows 536 Medicare services from Dr. Fenton across 4 procedure codes in 2024, for 68 Medicare patients. Medicare paid $25,310 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024536
Medicare patients68
Paid by Medicare$25,310
Procedure codes4

Dr. Fenton's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 4582024: 53617%

Dr. Fenton compared with the California median for psychiatrists, 2024

  • Dr. Fenton
  • California median
Medicare services
536vs 1194.5 times
Medicare patients
68vs 4166% above
Part D claims
14vs 14490% below

Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.

Dr. Fenton'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.

See all procedures by Dr. Fenton

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. John William Fenton treated 68 Medicare patients in 2024, average age 49

CMS counts 68 Medicare patients who saw Dr. Fenton in 2024. 75% of them have anxiety, and 75% have schizophrenia and other psychoses. Their average risk score is 1.14, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Fenton's median patient age at 45, with 46% women.

Medicare patients, 202468
Average age49
Average risk score1.14

Dr. Fenton's Medicare patients by sex, 2024

  • Women3044%
  • Men3856%

Chronic conditions among Dr. Fenton's Medicare patients, 2024

  1. Anxiety75%
  2. Schizophrenia and other psychoses75%
  3. Mood disorders71%
  4. Alcohol and drug use disorders65%
  5. Tobacco use57%
  6. Bipolar disorder53%
  7. High blood pressure50%
  8. High cholesterol46%

Share of Medicare patients with each condition. A patient can have several.

Dr. Fenton's patients across all payers

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

Patient panel by age, all payers

Median age 45

Patient panel by sex, all payers

  • Women46%
  • Men54%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. John William Fenton wrote 106 Medicare Part D claims in 2024

In 2024, Dr. Fenton wrote 106 Medicare Part D claims for 26 patients. 90% of them were for generic drugs. CMS names the drug for 14 of them, across 1 drug with 11 or more claims each, at $643 in total drug cost. In 2022, CMS named 13 claims across 1 drug.

Part D claims, 2024106
Drugs named by CMS1
Total drug cost$643
Part D patients26

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

  • Generic95 claims90%
  • Brand-name11 claims10%

Dr. Fenton's most prescribed drugs by claims, 2023

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, 2022 to 2023

  • 2022
  • 2023
Claims for drugs CMS names
2022: 132023: 148%

Drugs named by CMS: 1 in 2023, 1 in 2022.

See all prescribing by Dr. Fenton

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 William Fenton scored 95 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Fenton for performance year 2024, reported as part of a group. Dr. Fenton accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Fenton's MIPS scores, performance year 2024

  • 95of 100Final score
  • 86.9of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 73of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. John William Fenton has 10 publications on record

Dmand AI links 10 papers to Dr. Fenton. The most frequent topics are Thrombin, Receptors, Thrombin and Peptide Fragments.

Papers10

Topics Dr. Fenton writes about most

  • Thrombin
  • Receptors, Thrombin
  • Peptide Fragments
  • Plasminogen Activator Inhibitor 1
  • Signal Transduction
  • Anticholesteremic Agents
  • Cells, Cultured
  • Fibrinolytic Agents

Recent publications by Dr. Fenton

See all 10 publications and co-authors

See who Dr. Fenton researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Fenton works with, so you can find a warm path to the right psychiatrists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. John William Fenton graduated from American University of the Caribbean School of Medicine

Dr. Fenton graduated from American University of the Caribbean School of Medicine in 2002.

  1. Medical schoolAmerican University of the Caribbean School of Medicine

Source: Dmand AI Professional Profile Data

Dr. John William Fenton accepts plans from 6 insurance carriers

Dr. Fenton is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • CMS Medicare

Plan types Dr. Fenton accepts, by number of carriers

  1. Medicare6
  2. PPO5
  3. HMO2
  4. POS2
  5. EPO1

Source: Dmand AI Insurance Network Data

Sources for Dr. John William Fenton'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
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)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
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. John William Fenton

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 William Fenton's NPI number?

Dr. John William Fenton's NPI number is 1154478550. It was assigned on January 5, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. John William Fenton?

Dr. John William Fenton is a psychiatrist in Oakland, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).

Where does Dr. John William Fenton practice?

Dr. Fenton practices at 1411 East 31st Street, Oakland, CA 94602. Dr. Fenton's primary practice is Alameda Health System - Highland Hospital in Oakland, California, part of Alameda County. Dmand AI also links Dr. Fenton to 1 community health center.

What is Dr. John William Fenton's office phone number?

The practice phone on file for Dr. Fenton is (510) 437-4800.

What is Dr. John William Fenton's medical license number?

Dr. Fenton holds California license A96589, one of the licenses on file in 2 states.

Which states has Dr. John William Fenton been licensed in?

Dmand AI has state licenses on file for Dr. Fenton in California (2006 to 2026) and Louisiana (2006 to 2007).

Which hospitals is Dr. John William Fenton affiliated with?

Dr. Fenton practices at Alameda Health System - Highland Hospital in Oakland, California.

What medical group is Dr. John William Fenton part of?

Dr. Fenton is linked to Alameda Health System.

Does Dr. John William Fenton accept Medicare?

Yes. CMS data shows Dr. Fenton billed Medicare for 536 services in 2024, and Dr. Fenton accepts Medicare assignment.

What is Dr. John William Fenton's MIPS score?

Dr. Fenton's MIPS final score for performance year 2024 is 95 out of 100, reported as part of a group.

Show 7 more questionsShow fewer questions

How many Medicare patients does Dr. John William Fenton see?

CMS counts 68 Medicare patients who saw Dr. Fenton in 2024, with an average age of 49.

What services does Dr. John William Fenton bill to Medicare?

In 2024, Dr. Fenton's most billed Medicare services were hospital inpatient care (99231), hospital inpatient care (99221) and hospital inpatient care (99238).

Where did Dr. John William Fenton go to medical school?

Dr. Fenton graduated from American University of the Caribbean School of Medicine in 2002.

What drugs does Dr. John William Fenton prescribe most?

In 2023 Medicare Part D data, Dr. Fenton's most prescribed drugs by claims were Olanzapine ODT.

How long has Dr. John William Fenton been practicing?

Dr. Fenton graduated from medical school in 2002, 24 years ago.

Does Dr. John William Fenton do research?

Dmand AI links 10 publications to Dr. Fenton.

What insurance does Dr. John William Fenton accept?

Dr. Fenton is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

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