Dr. Joel Steven Mostow, MD
- Medicare services, 2021
- 50
- Part D claims, 2024
- 1,142
- Hospital affiliations
- 1
- Medical groups
- 2
- Insurance carriers
- 1
- Practice address
- 2100 Napa Vallejo Highway, Napa, CA 94558
- Practice phone
- Call (707) 253-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mostow'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. Joel Steven Mostow is a psychiatrist in Napa, California
Dr. Mostow practices at Department of State Hospitals - Napa in Napa, California, part of State of California.
Dr. Mostow's NPI, 1053351502, was assigned on June 6, 2006. Dr. Mostow graduated from Rush Medical College in 1990. Dr. Mostow holds California license G89065.
- NPI
- 1053351502NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9830155720
- NPI enumeration date
- June 6, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (707) 253-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joel Steven Mostow practices at Department of State Hospitals - Napa in Napa, California
Dr. Mostow's primary practice is Department of State Hospitals - Napa, at 2100 Napa Vallejo Highway, Napa, CA 94558 in Napa County. The practice phone is (707) 253-5000.
- Department of State Hospitals - Napa2100 Napa Vallejo Highway, Napa, CA 94558 · Napa CountyPhone(707) 253-5000
Source: Dmand AI Affiliation Data
Dr. Joel Steven Mostow is affiliated with 2 sites of care and 2 medical groups
Dr. Mostow's primary practice is Department of State Hospitals - Napa in Napa, California, part of State of California. The medical group on file is Coalinga State Hospital. Dmand AI also links Dr. Mostow to 1 more skilled nursing facility and 1 medical group, each named with a free account. Dr. Mostow's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Joel Steven Mostow's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mostow practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Department of State Hospitals - Napa | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Joel Steven Mostow is one of 6,803 psychiatrists in California
Psychiatry is Dr. Mostow's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Mostow is board certified in psychiatry by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Mostow's licenses on file in 2 states: California and Illinois.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
- Illinois license
Clinical focus
Dmand AI lists bipolar disorder and schizophrenia among the conditions Dr. Mostow treats.
Psychiatrists near Dr. Mostow
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. Joel Steven Mostow billed Medicare for 50 services in 2021
CMS data shows 50 Medicare services from Dr. Mostow across 1 procedure code in 2021. Medicare paid $1,040 for them. Every service was in an office.
Dr. Mostow's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 392021: 5028%
Dr. Mostow compared with the California median for psychiatrists, 2021
- Dr. Mostow
- California median
- Medicare services
- 50vs 11958% below
- Part D claims
- 913vs 1446.3 times
Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.
Dr. Mostow's most billed Medicare procedure codes, 2021
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. Mostow and other psychiatrists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Joel Steven Mostow's patients have a median age of 41
Across all payers, Dmand AI patient panel data puts Dr. Mostow's median patient age at 41, with 37% women.
Dr. Mostow's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 41
Patient panel by sex, all payers
- Women37%
- Men63%
Source: Dmand AI Patient Panel Data
Dr. Joel Steven Mostow wrote 1,142 Medicare Part D claims in 2024
In 2024, Dr. Mostow wrote 1,142 Medicare Part D claims for 22 patients. 82% of them were for generic drugs. CMS names the drug for 913 of them, across 27 drugs with 11 or more claims each, at $259,678 in total drug cost. In 2023, CMS named 630 claims across 22 drugs.
Dr. Mostow's Part D claims by kind of drug, 2024
- Generic931 claims82%
- Brand-name211 claims18%
Dr. Mostow'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. Mostow's Part D claims, 2024
- Antipsychotics, patients 65 and over10%117 of 1,142 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: 6302024: 91345%
Drugs named by CMS: 27 in 2024, 22 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
How Dr. Joel Steven Mostow takes part in Medicare
Dr. Mostow accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Joel Steven Mostow graduated from Rush Medical College
Dr. Mostow graduated from Rush Medical College in 1990.
- Medical school
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Dr. Joel Steven Mostow accepts plans from 1 insurance carrier
Dr. Mostow is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
- CMS Medicare
Source: Dmand AI Insurance Network Data
Sources for Dr. Joel Steven Mostow'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 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Joel Steven Mostow
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. Joel Steven Mostow's NPI number?
Dr. Joel Steven Mostow's NPI number is 1053351502. It was assigned on June 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Joel Steven Mostow?
Dr. Joel Steven Mostow is a psychiatrist in Napa, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Joel Steven Mostow practice?
Dr. Mostow practices at 2100 Napa Vallejo Highway, Napa, CA 94558. Dr. Mostow's primary practice is Department of State Hospitals - Napa in Napa, California, part of State of California. Dmand AI also links Dr. Mostow to 1 skilled nursing facility and 1 medical group.
What is Dr. Joel Steven Mostow's office phone number?
The practice phone on file for Dr. Mostow is (707) 253-5000.
What is Dr. Joel Steven Mostow's medical license number?
Dr. Mostow holds California license G89065, one of the licenses on file in 2 states.
Which states has Dr. Joel Steven Mostow been licensed in?
Dmand AI has state licenses on file for Dr. Mostow in California (2011 to 2027) and Illinois (1990 to 2026).
Which hospitals is Dr. Joel Steven Mostow affiliated with?
Dr. Mostow practices at Department of State Hospitals - Napa in Napa, California.
What medical group is Dr. Joel Steven Mostow part of?
Dr. Mostow is linked to Coalinga State Hospital. Dmand AI links Dr. Mostow to 1 more medical group.
Does Dr. Joel Steven Mostow accept Medicare?
Yes. CMS data shows Dr. Mostow billed Medicare for 50 services in 2021, and Dr. Mostow accepts Medicare assignment.
Is Dr. Joel Steven Mostow board certified?
Yes. Dr. Mostow is board certified in psychiatry by the American Board of Psychiatry and Neurology.
Show 5 more questionsShow fewer questions
What services does Dr. Joel Steven Mostow bill to Medicare?
In 2021, Dr. Mostow's most billed Medicare services were nursing facility care (99307).
Where did Dr. Joel Steven Mostow go to medical school?
Dr. Mostow graduated from Rush Medical College in 1990.
What drugs does Dr. Joel Steven Mostow prescribe most?
In 2024 Medicare Part D data, Dr. Mostow's most prescribed drugs by claims were Clozapine, Levothyroxine Sodium and Caplyta.
How long has Dr. Joel Steven Mostow been practicing?
Dr. Mostow graduated from medical school in 1990, 36 years ago.
What insurance does Dr. Joel Steven Mostow accept?
Dr. Mostow is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
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