Dr. Nader Fathi Wassef, MD
- Medicare services, 2020
- 50
- Part D claims, 2024
- 149
- Hospital affiliations
- 1
- Industry payments
- $2,182
- Medical group
- 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. Wassef'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. Nader Fathi Wassef is a psychiatrist in Napa, California
Dr. Wassef practices at Department of State Hospitals - Napa in Napa, California, part of State of California.
Dr. Wassef's NPI, 1902945611, was assigned on February 6, 2007. Dr. Wassef graduated from Cairo University School of Medicine in 1993. Dr. Wassef holds California license A80505.
- NPI
- 1902945611NPI Registry (opens in a new tab)
- NPI enumeration date
- February 6, 2007
- NPI status
- Active
- Practice phone
- (707) 253-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 57
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Nader Fathi Wassef practices at Department of State Hospitals - Napa in Napa, California
Dr. Wassef'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. Nader Fathi Wassef is affiliated with 2 sites of care and 1 medical group
Dr. Wassef'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. Wassef to 1 more skilled nursing facility, named with a free account. Dr. Wassef'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. Nader Fathi Wassef's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wassef 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 affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across State of California and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Nader Fathi Wassef is one of 6,803 psychiatrists in California
Psychiatry is Dr. Wassef's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Wassef is board certified in geriatric psychiatry by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Wassef's licenses on file in 2 states: California and Missouri.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
- Missouri license
Clinical focus
Dmand AI lists schizophrenia among the conditions Dr. Wassef treats.
Psychiatrists near Dr. Wassef
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. Nader Fathi Wassef billed Medicare for 50 services in 2020
CMS data shows 50 Medicare services from Dr. Wassef across 1 procedure code in 2020. Medicare paid $948 for them. Every service was in an office.
Dr. Wassef's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Office and hospital visits
- 2019: 652020: 5023%
Dr. Wassef compared with the California median for psychiatrists, 2020
- Dr. Wassef
- California median
- Medicare services
- 50vs 11958% below
- Part D claims
- 66vs 14454% below
Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.
Dr. Wassef's most billed Medicare procedure codes, 2020
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Wassef?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Wassef and other psychiatrists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nader Fathi Wassef's patients have a median age of 63
Across all payers, Dmand AI patient panel data puts Dr. Wassef's median patient age at 63, with 29% women.
Dr. Wassef's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women29%
- Men71%
Source: Dmand AI Patient Panel Data
Dr. Nader Fathi Wassef wrote 149 Medicare Part D claims in 2024
In 2024, Dr. Wassef wrote 149 Medicare Part D claims. 83% of them were for generic drugs. CMS names the drug for 66 of them, across 4 drugs with 11 or more claims each, at $1,032 in total drug cost. In 2023, CMS named 273 claims across 13 drugs.
Dr. Wassef's Part D claims by kind of drug, 2024
- Generic124 claims83%
- Brand-name25 claims17%
Dr. Wassef'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. Wassef's Part D claims, 2024
- Antipsychotics, patients 65 and over22%33 of 149 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: 2732024: 6676%
Drugs named by CMS: 4 in 2024, 13 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
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Nader Fathi Wassef received $2,182 in industry payments from 2016 to 2025
CMS Open Payments shows 25 general payments to Dr. Wassef from 7 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Otsuka America Pharmaceutical, Inc. paid the most, $940.
General payments to Dr. Wassef by program year, 2016 to 2025
Companies that paid Dr. Wassef the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Nader Fathi Wassef graduated from Cairo University School of Medicine
Dr. Wassef graduated from Cairo University School of Medicine in 1993.
- Medical school
- Board certified in geriatric psychiatry
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Sources for Dr. Nader Fathi Wassef'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Nader Fathi Wassef
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. Nader Fathi Wassef's NPI number?
Dr. Nader Fathi Wassef's NPI number is 1902945611. It was assigned on February 6, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Nader Fathi Wassef?
Dr. Nader Fathi Wassef is a psychiatrist in Napa, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Nader Fathi Wassef practice?
Dr. Wassef practices at 2100 Napa Vallejo Highway, Napa, CA 94558. Dr. Wassef's primary practice is Department of State Hospitals - Napa in Napa, California, part of State of California. Dmand AI also links Dr. Wassef to 1 skilled nursing facility.
What is Dr. Nader Fathi Wassef's office phone number?
The practice phone on file for Dr. Wassef is (707) 253-5000.
What is Dr. Nader Fathi Wassef's medical license number?
Dr. Wassef holds California license A80505, one of the licenses on file in 2 states.
Which states has Dr. Nader Fathi Wassef been licensed in?
Dmand AI has state licenses on file for Dr. Wassef in California (2002 to 2026) and Missouri (since 2013).
Which hospitals is Dr. Nader Fathi Wassef affiliated with?
Dr. Wassef practices at Department of State Hospitals - Napa in Napa, California.
What medical group is Dr. Nader Fathi Wassef part of?
Dr. Wassef is linked to Coalinga State Hospital.
Does Dr. Nader Fathi Wassef accept Medicare?
Yes. CMS data shows Dr. Wassef billed Medicare for 50 services in 2020.
Is Dr. Nader Fathi Wassef board certified?
Yes. Dr. Wassef is board certified in geriatric psychiatry by the American Board of Psychiatry and Neurology.
Show 5 more questionsShow fewer questions
What services does Dr. Nader Fathi Wassef bill to Medicare?
In 2020, Dr. Wassef's most billed Medicare services were nursing facility care (99307).
Where did Dr. Nader Fathi Wassef go to medical school?
Dr. Wassef graduated from Cairo University School of Medicine in 1993.
What drugs does Dr. Nader Fathi Wassef prescribe most?
In 2024 Medicare Part D data, Dr. Wassef's most prescribed drugs by claims were Atorvastatin Calcium, Olanzapine and Levothyroxine Sodium.
Has Dr. Nader Fathi Wassef received payments from drug or device companies?
CMS Open Payments shows $2,182 in general payments to Dr. Wassef from 7 companies from 2016 to 2025. The largest total came from Otsuka America Pharmaceutical, Inc.
How long has Dr. Nader Fathi Wassef been practicing?
Dr. Wassef graduated from medical school in 1993, 33 years ago.
Selling to psychiatry practices?
See psychiatrists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card