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Dr. Peter Nadim Youssef, MD
NPI1699886978PAC ID1355415159
- Medicare services, 2016
- 21
- Medicare patients, 2024
- 13
- Part D claims, 2024
- 348
- Publications
- 2
- Clinical trials
- 2
- Practice address
- 441 N Lakeview Ave, Anaheim, CA 92807
- Practice phone
- Call (714) 279-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Southern California Permanente Medical Group
Anaheim, California
Find Dr. Youssef'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. Peter Nadim Youssef is an ophthalmologist in Anaheim, California
Dr. Youssef practices at Southern California Permanente Medical Group in Anaheim, California.
Dr. Youssef's NPI, 1699886978, was assigned on August 31, 2006. Dr. Youssef graduated from Loyola University Chicago Stritch School of Medicine in 2003. Dr. Youssef's Wisconsin license number on file is 51719.
NPI and contact details
- NPI
- 1699886978NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1355415159
- NPI enumeration date
- August 31, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 279-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Peter Nadim Youssef practices at Southern California Permanente Medical Group in Anaheim, California
Dr. Youssef's primary practice is Southern California Permanente Medical Group, at 441 N Lakeview Ave, Anaheim, CA 92807 in Orange County. The practice phone is (714) 279-4000.
- Southern California Permanente Medical Group441 N Lakeview Ave, Anaheim, CA 92807 · Orange CountyPhone(714) 279-4000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Peter Nadim Youssef is affiliated with 2 sites of care and 1 medical group
Dr. Youssef's primary practice is Southern California Permanente Medical Group in Anaheim, California. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Youssef to 1 more group practice or clinic, named with a free account.
Southern California Permanente Medical GroupPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Peter Nadim Youssef's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Youssef practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Southern California Permanente Medical Group | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Peter Nadim Youssef is one of 2,621 ophthalmologists in California
Ophthalmology is Dr. Youssef's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Youssef is board certified in ophthalmology by the American Board of Ophthalmology. Dmand AI has Dr. Youssef's licenses on file in 3 states: Wisconsin, California and Illinois.
Specialties and state licenses
- Ophthalmology, WisconsinPrimary
- California license
- Illinois license
Clinical focus
Dmand AI lists conjunctivitis and laser destruction of retinal or choroid lesions among the conditions Dr. Youssef treats.
Ophthalmologists near Dr. Youssef
Counts of ophthalmologists 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. Peter Nadim Youssef billed Medicare for 21 services in 2016
CMS data shows 21 Medicare services from Dr. Youssef across 1 procedure code in 2016, for 13 Medicare patients. Medicare paid $822 for them. Every service was in an office.
Medicare services, 201621
Medicare patients13
Paid by Medicare$822
Procedure codes1
Dr. Youssef compared with the California median for ophthalmologists, 2016
- Dr. Youssef
- California median
- Medicare services
- 21vs 1,07998% below
- Medicare patients
- 13vs 42197% below
- Part D claims
- 303vs 61851% below
Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.
Dr. Youssef's most billed Medicare procedure codes, 2016
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. Youssef and other ophthalmologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Peter Nadim Youssef treated 13 Medicare patients in 2024, average age 70
CMS counts 13 Medicare patients who saw Dr. Youssef in 2024. Their average risk score is 2.80, 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. Youssef's median patient age at 68, with 44% women.
Medicare patients, 202413
Average age70
Average risk score2.80
Dr. Youssef'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
- Women44%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Peter Nadim Youssef wrote 348 Medicare Part D claims in 2024
In 2024, Dr. Youssef wrote 348 Medicare Part D claims for 96 patients. 74% of them were for generic drugs. CMS names the drug for 303 of them, across 8 drugs with 11 or more claims each, at $6,037 in total drug cost. In 2023, CMS named 368 claims across 10 drugs.
Part D claims, 2024348
Drugs named by CMS8
Total drug cost$6,037
Part D patients96
Dr. Youssef's Part D claims by kind of drug, 2024
- Generic257 claims74%
- Brand-name91 claims26%
Dr. Youssef'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3682024: 30318%
Drugs named by CMS: 8 in 2024, 10 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. Peter Nadim Youssef takes part in Medicare
Dr. Youssef 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. Peter Nadim Youssef has 2 publications on record
Dmand AI links 2 papers to Dr. Youssef in 2010.
Papers2
Recent publications by Dr. Youssef
See who Dr. Youssef researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Youssef works with, so you can find a warm path to the right ophthalmologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Peter Nadim Youssef has worked on 2 clinical trials
Dmand AI links Dr. Youssef to 2 clinical trials. Conditions studied include Pulmonary Arterial Hypertension and Hypertension, Pulmonary. United Therapeutics sponsors the most, 2.
Conditions in Dr. Youssef's trials
- Pulmonary Arterial Hypertension
- Hypertension, Pulmonary
Investigators on the most trials with Dr. Youssef
- Roblee P. Allen, MD2 shared trials
- Samuel A. Allen, DO2 shared trials
- Vijay Purushoth Balasubramanian, MD2 shared trials
Recent clinical trials with Dr. Youssef
An Open-Label, Long-Term Study of Oral Treprostinil in Subjects With Pulmonary Arterial Hypertension (opens in a new tab)
CompletedPhase 3
Pulmonary Arterial HypertensionHypertension, PulmonaryUT-15C (treprostinil diolamine)
Pulmonary Arterial HypertensionHypertension, PulmonaryTreprostinil Diolamine
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Peter Nadim Youssef received $250 in industry payments in 2016
CMS Open Payments shows 2 general payments to Dr. Youssef from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $250.
Companies that paid Dr. Youssef the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Peter Nadim Youssef has 1 award and honors on record
Dmand AI lists 1 award for Dr. Youssef.
Awards and honors for Dr. Youssef
- Undated
- AAO Fellow
Source: Dmand AI Professional Profile Data
Dr. Peter Nadim Youssef graduated from Loyola University Chicago Stritch School of Medicine
Dr. Youssef graduated from Loyola University Chicago Stritch School of Medicine in 2003. Dr. Youssef is a member of AAO and American Society of Retinal Surgeons.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. Peter Nadim Youssef accepts plans from 2 insurance carriers
Dr. Youssef is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Youssef accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Peter Nadim Youssef'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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 |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Peter Nadim Youssef
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. Peter Nadim Youssef's NPI number?
Dr. Peter Nadim Youssef's NPI number is 1699886978. It was assigned on August 31, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Peter Nadim Youssef?
Dr. Peter Nadim Youssef is an ophthalmologist in Anaheim, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Peter Nadim Youssef practice?
Dr. Youssef practices at 441 N Lakeview Ave, Anaheim, CA 92807. Dr. Youssef's primary practice is Southern California Permanente Medical Group in Anaheim, California. Dmand AI also links Dr. Youssef to 1 group practice or clinic.
What is Dr. Peter Nadim Youssef's office phone number?
The practice phone on file for Dr. Youssef is (714) 279-4000.
What is Dr. Peter Nadim Youssef's medical license number?
Dr. Youssef's Wisconsin license number on file is 51719, one of the licenses on file in 3 states.
Which states has Dr. Peter Nadim Youssef been licensed in?
Dmand AI has state licenses on file for Dr. Youssef in Wisconsin (2008 to 2013), California (2007 to 2026) and Illinois (2003 to 2004).
What medical group is Dr. Peter Nadim Youssef part of?
Dr. Youssef is linked to Southern California Permanente Medical Group.
Does Dr. Peter Nadim Youssef accept Medicare?
Yes. CMS data shows Dr. Youssef billed Medicare for 21 services in 2016, and Dr. Youssef accepts Medicare assignment.
How many Medicare patients does Dr. Peter Nadim Youssef see?
CMS counts 13 Medicare patients who saw Dr. Youssef in 2024, with an average age of 70.
Is Dr. Peter Nadim Youssef board certified?
Yes. Dr. Youssef is board certified in ophthalmology by the American Board of Ophthalmology.
Show 7 more questionsShow fewer questions
What services does Dr. Peter Nadim Youssef bill to Medicare?
In 2016, Dr. Youssef's most billed Medicare services were eye exam or test (92012).
Where did Dr. Peter Nadim Youssef go to medical school?
Dr. Youssef graduated from Loyola University Chicago Stritch School of Medicine in 2003.
What drugs does Dr. Peter Nadim Youssef prescribe most?
In 2024 Medicare Part D data, Dr. Youssef's most prescribed drugs by claims were Prednisolone Acetate, Ketorolac Tromethamine and Latanoprost.
Has Dr. Peter Nadim Youssef received payments from drug or device companies?
CMS Open Payments shows $250 in general payments to Dr. Youssef from 1 company from 2016 to 2016. The largest total came from Allergan Inc.
How long has Dr. Peter Nadim Youssef been practicing?
Dr. Youssef graduated from medical school in 2003, 23 years ago.
Does Dr. Peter Nadim Youssef do research?
Dmand AI links 2 publications to Dr. Youssef. Dr. Youssef has worked on 2 clinical trials.
What insurance does Dr. Peter Nadim Youssef accept?
Dr. Youssef is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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