Dr. Peter Jonathan Frederick, MD
- Medicare services, 2024
- 155
- Medicare patients, 2024
- 131
- Part D claims, 2024
- 17
- Publications
- 43
- Hospital affiliations
- 1
- Practice address
- 344 S Hauser Blvd, Los Angeles, CA 90036
- Practice phone
- Call (716) 845-2300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Roswell Park Cancer Institute
Los Angeles, California
Find Dr. Frederick'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 Jonathan Frederick is a gynecologic oncologist in Los Angeles, California
Dr. Frederick practices at Roswell Park Cancer Institute in Los Angeles, California.
Dr. Frederick's NPI, 1558579078, was assigned on May 18, 2007. Dr. Frederick graduated from University at Buffalo School of Medicine in 2003. Dr. Frederick holds New York license 256843.
- NPI
- 1558579078NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2062513369
- NPI enumeration date
- May 18, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (716) 845-2300
- 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 Jonathan Frederick practices at Roswell Park Cancer Institute in Los Angeles, California
Dr. Frederick's primary practice is Roswell Park Cancer Institute, at 344 S Hauser Blvd, Los Angeles, CA 90036 in Los Angeles County. The practice phone is (716) 845-2300.
- Roswell Park Cancer Institute344 S Hauser Blvd, Los Angeles, CA 90036 · Los Angeles CountyPhone(716) 845-2300
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Peter Jonathan Frederick is affiliated with 2 sites of care and 4 medical groups
Dr. Frederick's primary practice is Roswell Park Cancer Institute in Los Angeles, California. Dr. Frederick is also affiliated with Roswell Park Comprehensive Cancer Center. The medical group on file is Breast Care of Western New York. Dmand AI also links Dr. Frederick to 3 more medical groups, 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 Jonathan Frederick's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Frederick practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Roswell Park Cancer Institute | Available with a free account |
| +1 more site and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Peter Jonathan Frederick is one of 178 gynecologic oncologists in California
Gynecologic oncology is Dr. Frederick's primary specialty in the NPI Registry, under taxonomy code 207VX0201X. Dr. Frederick is licensed in New York.
Specialties and state licenses
- Gynecologic oncology, New YorkPrimary
Gynecologic oncologists near Dr. Frederick
Counts of gynecologic oncologists 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 Jonathan Frederick billed Medicare for 155 services in 2024
CMS data shows 155 Medicare services from Dr. Frederick across 4 procedure codes in 2024, all of them office visits, for 131 Medicare patients. Medicare paid $10,341 for them.
Dr. Frederick's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1582024: 1552%
Where Dr. Frederick's Medicare services took place, 2024
- In an office7045%
- In a facility8555%
Dr. Frederick compared with the California median for gynecologic oncologists, 2024
- Dr. Frederick
- California median
- Medicare services
- 155vs 28045% below
- Medicare patients
- 131vs 1227% above
- Part D claims
- 26vs 3832% below
Medians across 165 gynecologic oncologists in California with Dmand AI profiles that report each measure.
Dr. Frederick'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.
Need commercial claims for Dr. Frederick?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Frederick and other gynecologic oncologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Peter Jonathan Frederick treated 131 Medicare patients in 2024, average age 69
CMS counts 131 Medicare patients who saw Dr. Frederick in 2024. The largest group is 65 to 74, with 74 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 27% are also on Medicaid. Their average risk score is 2.06, 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. Frederick's median patient age at 69, with 99% women.
Dr. Frederick's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Frederick's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Cancer46%
- Arthritis43%
- Anxiety40%
- Diabetes36%
- Mood disorders36%
- Depression32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Frederick's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women99%
- Men1%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Peter Jonathan Frederick wrote 17 Medicare Part D claims in 2024
In 2024, Dr. Frederick wrote 17 Medicare Part D claims for 11 patients. 100% of them were for generic drugs. They cover 2 drugs, with $9,121 in total drug cost.
Dr. Frederick'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.
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. Peter Jonathan Frederick ranks in the 93rd percentile for removal of the uterus in Medicare
Dr. Frederick accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 20 procedures of removal of the uterus by Dr. Frederick, more than 93% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Frederick ranks in Medicare procedure volume
- Removal of the uterus
- 93rd percentile20 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Peter Jonathan Frederick has 43 publications on record
Dmand AI links 43 papers to Dr. Frederick, published from 2011 to 2025. 2016 was the busiest year, with 5. The most frequent topics are Antineoplastic Agents, Genital Neoplasms, Female and Ovarian Neoplasms. Dr. Frederick has published most often in Int J Gynecol Cancer. Dr. Frederick's most frequent co-authors are Christina S. Chu, MD, Marta Ann Crispens, MD and David K. Gaffney, MD, PhD.
Dr. Frederick's papers by year, 2015 to 2025
Topics Dr. Frederick writes about most
- Antineoplastic Agents
- Genital Neoplasms, Female
- Ovarian Neoplasms
- Carboplatin
- Medical Oncology
- Paclitaxel
- Antineoplastic Combined Chemotherapy Protocols
- Biomarkers, Tumor
Dr. Frederick's most frequent co-authors
- Christina S. Chu, MD8 shared papers
- Marta Ann Crispens, MD8 shared papers
- David K. Gaffney, MD, PhD8 shared papers
Recent publications by Dr. Frederick
See who Dr. Frederick researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Frederick works with, so you can find a warm path to the right gynecologic oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Peter Jonathan Frederick received $3,310 in industry payments from 2016 to 2025
CMS Open Payments shows 20 general payments to Dr. Frederick from 9 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 60% of the total. Novadaq Technologies Inc. paid the most, $2,592.
General payments to Dr. Frederick by program year, 2016 to 2025
General payments to Dr. Frederick by kind, 2016 to 2025
- Food and beverage$1,97760%
- Travel and lodging$1,33340%
Companies that paid Dr. Frederick 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 Jonathan Frederick graduated from University at Buffalo School of Medicine
Dr. Frederick graduated from University at Buffalo School of Medicine in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Peter Jonathan Frederick'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)Doctors and Clinicians Utilization Data (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 |
| 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. Peter Jonathan Frederick
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 Jonathan Frederick's NPI number?
Dr. Peter Jonathan Frederick's NPI number is 1558579078. It was assigned on May 18, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Peter Jonathan Frederick?
Dr. Peter Jonathan Frederick is a gynecologic oncologist in Los Angeles, California. The primary specialty in the NPI Registry is Gynecologic Oncology Physician (taxonomy code 207VX0201X).
Where does Dr. Peter Jonathan Frederick practice?
Dr. Frederick practices at 344 S Hauser Blvd, Los Angeles, CA 90036. Dr. Frederick's primary practice is Roswell Park Cancer Institute in Los Angeles, California. Dmand AI also links Dr. Frederick to 3 medical groups.
What is Dr. Peter Jonathan Frederick's office phone number?
The practice phone on file for Dr. Frederick is (716) 845-2300.
What is Dr. Peter Jonathan Frederick's medical license number?
Dr. Frederick holds New York license 256843.
Which hospitals is Dr. Peter Jonathan Frederick affiliated with?
Dr. Frederick is affiliated with Roswell Park Comprehensive Cancer Center.
What medical group is Dr. Peter Jonathan Frederick part of?
Dr. Frederick is linked to Breast Care of Western New York. Dmand AI links Dr. Frederick to 3 more medical groups.
Does Dr. Peter Jonathan Frederick accept Medicare?
Yes. CMS data shows Dr. Frederick billed Medicare for 155 services in 2024, and Dr. Frederick accepts Medicare assignment.
How many Medicare patients does Dr. Peter Jonathan Frederick see?
CMS counts 131 Medicare patients who saw Dr. Frederick in 2024, with an average age of 69.
What services does Dr. Peter Jonathan Frederick bill to Medicare?
In 2024, Dr. Frederick's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and office visit, new patient (99204).
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Where did Dr. Peter Jonathan Frederick go to medical school?
Dr. Frederick graduated from University at Buffalo School of Medicine in 2003.
What drugs does Dr. Peter Jonathan Frederick prescribe most?
In 2023 Medicare Part D data, Dr. Frederick's most prescribed drugs by claims were Eliquis and Oxycodone HCl.
Has Dr. Peter Jonathan Frederick received payments from drug or device companies?
CMS Open Payments shows $3,310 in general payments to Dr. Frederick from 9 companies from 2016 to 2025. The largest total came from Novadaq Technologies Inc.
How long has Dr. Peter Jonathan Frederick been practicing?
Dr. Frederick graduated from medical school in 2003, 23 years ago.
Does Dr. Peter Jonathan Frederick do research?
Dmand AI links 43 publications to Dr. Frederick, published from 2011 to 2025.
Who does Dr. Peter Jonathan Frederick publish with?
Dr. Frederick's most frequent co-authors are Christina S. Chu, MD (8 shared papers), Marta Ann Crispens, MD (8 shared papers) and David K. Gaffney, MD, PhD (8 shared papers).
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