Dr. Peter Theodore Nassar, MD
- Medicare services, 2022
- 25
- Medicare patients, 2024
- 21
- Part D claims, 2024
- 69
- Hospital affiliations
- 1
- Industry payments
- $1,686
- Practice address
- 740 E Almond Ave, Madera, CA 93637
- Practice phone
- Call (559) 288-4945
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Camarena Health - Chowchilla Health Center
Madera, California
Find Dr. Nassar'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 Theodore Nassar is an OB-GYN in Madera, California
Dr. Nassar practices at Camarena Health - Chowchilla Health Center in Madera, California.
Dr. Nassar's NPI, 1669498622, was assigned on July 14, 2006. Dr. Nassar graduated from Ross University School of Medicine in 2000. Dr. Nassar holds California license A80372.
- NPI
- 1669498622NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9739161837
- NPI enumeration date
- July 14, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (559) 288-4945
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Peter Theodore Nassar practices at Camarena Health - Chowchilla Health Center in Madera, California
Dr. Nassar's primary practice is Camarena Health - Chowchilla Health Center, at 740 E Almond Ave, Madera, CA 93637 in Madera County. The practice phone is (559) 288-4945.
- Camarena Health - Chowchilla Health Center740 E Almond Ave, Madera, CA 93637 · Madera CountyPhone(559) 288-4945
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Peter Theodore Nassar is affiliated with 3 sites of care and 2 medical groups
Dr. Nassar's primary practice is Camarena Health - Chowchilla Health Center in Madera, California. Dr. Nassar is also affiliated with Saint Agnes Medical Center. The medical group on file is Camarena Health. Dmand AI also links Dr. Nassar to 1 more community health center and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Peter Theodore Nassar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nassar practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Camarena Health - Chowchilla Health Center | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Peter Theodore Nassar is one of 4,642 OB-GYNs in California
Obstetrics and gynecology is Dr. Nassar's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Nassar is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology. Dr. Nassar is licensed in California.
Specialties and state licenses
- Obstetrics and gynecology, CaliforniaPrimary
Clinical focus
Dmand AI lists hysterectomy, menopause, UTI and vaginal infection among the conditions Dr. Nassar treats.
OB-GYNs near Dr. Nassar
Counts of OB-GYNs 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 Theodore Nassar billed Medicare for 25 services in 2022
CMS data shows 25 Medicare services from Dr. Nassar across 2 procedure codes in 2022, for 21 Medicare patients. Medicare paid $1,808 for them. Every service was in an office.
Dr. Nassar's Medicare services by type, 2020 to 2022
- 2020
- 2022
- Office and hospital visits
- 2020: 142022: 14No change
- Lab and pathology
- 2020: 02022: 11
Dr. Nassar compared with the California median for OB-GYNs, 2022
- Dr. Nassar
- California median
- Medicare services
- 25vs 5857% below
- Medicare patients
- 21vs 5260% below
- Part D claims
- 13vs 3563% below
Medians across 3,823 OB-GYNs in California with Dmand AI profiles that report each measure.
Dr. Nassar's most billed Medicare procedure codes, 2022
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. Nassar?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nassar and other OB-GYNs in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Peter Theodore Nassar treated 21 Medicare patients in 2024, average age 66
CMS counts 21 Medicare patients who saw Dr. Nassar in 2024. 75% of them have high cholesterol, and 67% have high blood pressure. Their average risk score is 0.80, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Nassar's median patient age at 34, with 100% women.
Chronic conditions among Dr. Nassar's Medicare patients, 2024
- High cholesterol75%
- High blood pressure67%
- Arthritis52%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nassar's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 34
Patient panel by sex, all payers
- Women100%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Peter Theodore Nassar wrote 69 Medicare Part D claims in 2024
In 2024, Dr. Nassar wrote 69 Medicare Part D claims for 23 patients. 83% of them were for generic drugs. CMS names the drug for 13 of them, across 1 drug with 11 or more claims each, at $1,339 in total drug cost. In 2019, CMS named 11 claims across 1 drug.
Dr. Nassar's Part D claims by kind of drug, 2024
- Generic57 claims83%
- Brand-name12 claims17%
Dr. Nassar's most prescribed drugs by claims, 2022
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. Nassar's Part D claims, 2024
- Antibiotics17%12 of 69 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, 2019 to 2022
- 2019
- 2022
- Claims for drugs CMS names
- 2019: 112022: 1318%
Drugs named by CMS: 1 in 2022, 1 in 2019.
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 Theodore Nassar takes part in Medicare
Dr. Nassar 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 Theodore Nassar received $1,686 in industry payments from 2016 to 2025
CMS Open Payments shows 70 general payments to Dr. Nassar from 31 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 78% of the total. Sanofi and Genzyme US Companies paid the most, $205.
General payments to Dr. Nassar by program year, 2016 to 2025
General payments to Dr. Nassar by kind, 2016 to 2025
- Food and beverage$1,32078%
- Education$36722%
Companies that paid Dr. Nassar 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. Peter Theodore Nassar graduated from Ross University School of Medicine
Dr. Nassar graduated from Ross University School of Medicine in 2000.
- Medical school
- Board certified in obstetrics & gynecology
Source: Dmand AI Professional Profile Data
Dr. Peter Theodore Nassar accepts plans from 16 insurance carriers
Dr. Nassar is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +8 more carriersWith a free account
Plan types Dr. Nassar accepts, by number of carriers
- PPO9
- Medicare8
- HMO7
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Peter Theodore Nassar'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 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 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) |
| Industry payments | Open Payments (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. Peter Theodore Nassar
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 Theodore Nassar's NPI number?
Dr. Peter Theodore Nassar's NPI number is 1669498622. It was assigned on July 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Peter Theodore Nassar?
Dr. Peter Theodore Nassar is an OB-GYN in Madera, California. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Peter Theodore Nassar practice?
Dr. Nassar practices at 740 E Almond Ave, Madera, CA 93637. Dr. Nassar's primary practice is Camarena Health - Chowchilla Health Center in Madera, California. Dmand AI also links Dr. Nassar to 1 community health center and 1 medical group.
What is Dr. Peter Theodore Nassar's office phone number?
The practice phone on file for Dr. Nassar is (559) 288-4945.
What is Dr. Peter Theodore Nassar's medical license number?
Dr. Nassar holds California license A80372.
Which hospitals is Dr. Peter Theodore Nassar affiliated with?
Dr. Nassar is affiliated with Saint Agnes Medical Center.
What medical group is Dr. Peter Theodore Nassar part of?
Dr. Nassar is linked to Camarena Health. Dmand AI links Dr. Nassar to 1 more medical group.
Does Dr. Peter Theodore Nassar accept Medicare?
Yes. CMS data shows Dr. Nassar billed Medicare for 25 services in 2022, and Dr. Nassar accepts Medicare assignment.
How many Medicare patients does Dr. Peter Theodore Nassar see?
CMS counts 21 Medicare patients who saw Dr. Nassar in 2024, with an average age of 66.
Is Dr. Peter Theodore Nassar board certified?
Yes. Dr. Nassar is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology.
Show 6 more questionsShow fewer questions
What services does Dr. Peter Theodore Nassar bill to Medicare?
In 2022, Dr. Nassar's most billed Medicare services were office visit, new patient (99204) and lab and pathology test (81002).
Where did Dr. Peter Theodore Nassar go to medical school?
Dr. Nassar graduated from Ross University School of Medicine in 2000.
What drugs does Dr. Peter Theodore Nassar prescribe most?
In 2022 Medicare Part D data, Dr. Nassar's most prescribed drugs by claims were Estradiol.
Has Dr. Peter Theodore Nassar received payments from drug or device companies?
CMS Open Payments shows $1,686 in general payments to Dr. Nassar from 31 companies from 2016 to 2025. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. Peter Theodore Nassar been practicing?
Dr. Nassar graduated from medical school in 2000, 26 years ago.
What insurance does Dr. Peter Theodore Nassar accept?
Dr. Nassar is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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