Dr. Stephen C. Allison, MD

  • Greenbrae, CA
  • Psychiatrist
NPI1023336294PAC ID6002030509
Medicare services, 2024
215
Medicare patients, 2024
44
Part D claims, 2024
76
Publications
8
MIPS score, 2024
81
Practice address
250 Bon Air Road, Greenbrae, CA 94904
Practice phone
Call (415) 925-7900
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

MarinHealth Medical Center

Hospital · Greenbrae, California

See all 4 affiliations

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Dr. Stephen C. Allison is a psychiatrist in Greenbrae, California

Dr. Allison practices at MarinHealth Medical Center in Greenbrae, California, part of Marin Healthcare District.

Dr. Allison's NPI, 1023336294, was assigned on May 12, 2010. Dr. Allison graduated from UCSF School of Medicine in 2010. Dr. Allison's California license number on file is A118576.

NPI and contact details
Medicare PAC ID
6002030509
NPI enumeration date
May 12, 2010
NPI status
Active
Practice phone
(415) 925-7900
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
42
Medical school graduation
2010

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

Dr. Stephen C. Allison practices at MarinHealth Medical Center in Greenbrae, California

Dr. Allison's primary practice is MarinHealth Medical Center, at 250 Bon Air Road, Greenbrae, CA 94904 in Marin County. The practice phone is (415) 925-7900.

Source: Dmand AI Affiliation Data

Dr. Stephen C. Allison is affiliated with 2 sites of care and 2 medical groups

Dr. Allison's primary practice is MarinHealth Medical Center in Greenbrae, California, part of Marin Healthcare District. The medical group on file is UCSF Medical Group. Dmand AI also links Dr. Allison to 1 more physician office and 1 medical group, each named with a free account.

See all 4 affiliations for Dr. Allison

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

Dmand AI tracks the EHR system at Dr. Stephen C. Allison's practice

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

EHR by site
SiteEHR vendor and product
MarinHealth Medical CenterAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Stephen C. Allison is one of 6,803 psychiatrists in California

Psychiatry is Dr. Allison's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Allison is board certified in psychiatry by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Allison's licenses on file in 2 states: California and Texas.

Specialties and state licenses

  • Psychiatry, CaliforniaPrimaryLicense A118576 · 2011 to 2025 · taxonomy 2084P0800X
  • Texas license2016 to 2018

Clinical focus

Dmand AI lists depression and psychoses among the conditions Dr. Allison treats.

Psychiatrists near Dr. Allison

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. Stephen C. Allison billed Medicare for 215 services in 2024

CMS data shows 215 Medicare services from Dr. Allison across 3 procedure codes in 2024, for 44 Medicare patients. Medicare paid $22,055 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024215
Medicare patients44
Paid by Medicare$22,055
Procedure codes3

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

  • 2023
  • 2024
Office and hospital visits
2023: 4172024: 21548%

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

  • Dr. Allison
  • California median
Medicare services
215vs 11981% above
Medicare patients
44vs 417% above
Part D claims
14vs 14490% below

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

Dr. Allison'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. Allison

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

Dr. Stephen C. Allison treated 44 Medicare patients in 2024, average age 65

CMS counts 44 Medicare patients who saw Dr. Allison in 2024. The largest group is under 65, with 19 patients. 75% of them have anxiety, and 75% have depression. Their average risk score is 1.69, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Allison's median patient age at 68, with 67% women.

Medicare patients, 202444
Average age65
Average risk score1.69

Dr. Allison's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Allison's Medicare patients by sex, 2024

  • Women2864%
  • Men1636%

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

  1. Anxiety75%
  2. Depression75%
  3. High blood pressure75%
  4. Mood disorders75%
  5. Schizophrenia and other psychoses75%
  6. High cholesterol68%
  7. Alcohol and drug use disorders55%
  8. Bipolar disorder48%

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

Dr. Allison's patients across all payers

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

Patient panel by age, all payers

Median age 68

Patient panel by sex, all payers

  • Women67%
  • Men33%

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

Dr. Stephen C. Allison wrote 76 Medicare Part D claims in 2024

In 2024, Dr. Allison wrote 76 Medicare Part D claims for 16 patients. 96% of them were for generic drugs. CMS names the drug for 14 of them, across 1 drug with 11 or more claims each, at $398 in total drug cost. In 2022, CMS named 49 claims across 3 drugs.

Part D claims, 202476
Drugs named by CMS1
Total drug cost$398
Part D patients16

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

  • Generic73 claims96%
  • Brand-name and other3 claims4%

Dr. Allison'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: 492023: 1471%

Drugs named by CMS: 1 in 2023, 3 in 2022.

See all prescribing by Dr. Allison

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. Stephen C. Allison scored 81 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 81 out of 100 for Dr. Allison for performance year 2024.

Dr. Allison's MIPS scores, performance year 2024

  • 81of 100Final score
  • 80.9of 100Quality
  • 76of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 76of 100Cost

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

Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Stephen C. Allison has 8 publications on record

Dmand AI links 8 papers to Dr. Allison, published from 2005 to 2008. 2005 was the busiest year, with 2. The most frequent topics are Dementia, Alzheimer Disease and Brain. Dr. Allison has published most often in Brain. Dr. Allison's most frequent co-authors are Howard J. Rosen, MD, Bruce L. Miller, MD and Michael Weiner, MD.

Papers8
Years published2005 to 2008

Dr. Allison's papers by year, 2005 to 2008

Topics Dr. Allison writes about most

  • Dementia
  • Alzheimer Disease
  • Brain
  • Magnetic Resonance Imaging
  • Neuropsychological Tests
  • Brain Mapping
  • Image Processing, Computer-Assisted
  • Temporal Lobe

Dr. Allison's most frequent co-authors

Recent publications by Dr. Allison

See all 8 publications and co-authors

See who Dr. Allison researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Allison 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. Stephen C. Allison graduated from UCSF School of Medicine

Dr. Allison graduated from UCSF School of Medicine in 2010.

  1. Medical schoolUCSF School of Medicine
  2. Board certified in psychiatryAmerican Board of Psychiatry and Neurology

Source: Dmand AI Professional Profile Data

Dr. Stephen C. Allison accepts plans from 7 insurance carriers

Dr. Allison is in network with 7 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

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

Plan types Dr. Allison accepts, by number of carriers

  1. Medicare7
  2. PPO6
  3. HMO3
  4. POS3
  5. EPO2

Source: Dmand AI Insurance Network Data

Sources for Dr. Stephen C. Allison'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 percentilesClinician 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. Stephen C. Allison

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. Stephen C. Allison's NPI number?

Dr. Stephen C. Allison's NPI number is 1023336294. It was assigned on May 12, 2010, and it is active in the NPI Registry.

What kind of doctor is Dr. Stephen C. Allison?

Dr. Stephen C. Allison is a psychiatrist in Greenbrae, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).

Where does Dr. Stephen C. Allison practice?

Dr. Allison practices at 250 Bon Air Road, Greenbrae, CA 94904. Dr. Allison's primary practice is MarinHealth Medical Center in Greenbrae, California, part of Marin Healthcare District. Dmand AI also links Dr. Allison to 1 physician office and 1 medical group.

What is Dr. Stephen C. Allison's office phone number?

The practice phone on file for Dr. Allison is (415) 925-7900.

What is Dr. Stephen C. Allison's medical license number?

Dr. Allison's California license number on file is A118576, one of the licenses on file in 2 states.

Which states has Dr. Stephen C. Allison been licensed in?

Dmand AI has state licenses on file for Dr. Allison in California (2011 to 2025) and Texas (2016 to 2018).

Which hospitals is Dr. Stephen C. Allison affiliated with?

Dr. Allison practices at MarinHealth Medical Center in Greenbrae, California.

What medical group is Dr. Stephen C. Allison part of?

Dr. Allison is linked to UCSF Medical Group. Dmand AI links Dr. Allison to 1 more medical group.

Does Dr. Stephen C. Allison accept Medicare?

Yes. CMS data shows Dr. Allison billed Medicare for 215 services in 2024.

What is Dr. Stephen C. Allison's MIPS score?

Dr. Allison's MIPS final score for performance year 2024 is 81 out of 100.

Show 9 more questionsShow fewer questions

How many Medicare patients does Dr. Stephen C. Allison see?

CMS counts 44 Medicare patients who saw Dr. Allison in 2024, with an average age of 65.

Is Dr. Stephen C. Allison board certified?

Yes. Dr. Allison is board certified in psychiatry by the American Board of Psychiatry and Neurology.

What services does Dr. Stephen C. Allison bill to Medicare?

In 2024, Dr. Allison's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99223) and hospital inpatient care (99239).

Where did Dr. Stephen C. Allison go to medical school?

Dr. Allison graduated from UCSF School of Medicine in 2010.

What drugs does Dr. Stephen C. Allison prescribe most?

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

How long has Dr. Stephen C. Allison been practicing?

Dr. Allison graduated from medical school in 2010, 16 years ago.

Does Dr. Stephen C. Allison do research?

Dmand AI links 8 publications to Dr. Allison, published from 2005 to 2008.

Who does Dr. Stephen C. Allison publish with?

Dr. Allison's most frequent co-authors are Howard J. Rosen, MD (4 shared papers), Bruce L. Miller, MD (3 shared papers) and Michael Weiner, MD (1 shared paper).

What insurance does Dr. Stephen C. Allison accept?

Dr. Allison is in network with 7 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

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