Ryan Matthew Ponec, MD
Hematology & Oncology Physician · Tarzana, CA
Ryan Matthew Ponec, MD is a hematology & oncology physician with a practice address in Tarzana, California, and NPI 1013335199, issued on Apr 4, 2014. Check the license (California A141382, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ryan Matthew Ponec
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- A141382 CA
Self-reported in NPPES; status is on the state search - Practice location
- 18133 Ventura Blvd Ste 300, Tarzana, CA 91356
- Phone
- (818) 981-3818
- Enumerated
- Apr 4, 2014
- Record last updated
- Jul 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210806001205); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2014
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 18133 Ventura Blvd Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Danielle Baruch, PA-CPhysician Assistant1619635984
- Johnny Chang, MDHematology & Oncology Physician1366465304
- Mazen Jizzini, MDHematology & Oncology Physician1346702032
- Brian Lachapelle, PASurgical Physician Assistant1891707618
- Rebecca YanagaPhysician Assistant1073107041
- Pari Young, MDNeurology Physician1083880918
Verify Ryan Matthew Ponec in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A141382Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55% more Medicare Part D claims than the average hematology & oncology physician in 2024
1,361 Medicare Part D claims for 212 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 18 claims were for opioids.
Most prescribed
- Anastrozole201 claims
- Eliquis89 claims
- Tamoxifen Citrate59 claims
- Ondansetron Hcl51 claims
- Potassium Chloride47 claims
- Gabapentin41 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 85.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Cedars-Sinai Medical Care FoundationTarzana, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ryan Matthew Ponec among 1,583 hematology & oncology physician records in California
Ryan Matthew Ponec, MD is one of 1,583 hematology & oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 81% of them.
- NPI issued2014 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2014 · median 2003 among the 1,124 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in California
There are 1,583 hematology & oncology physician records in California.
All 1,583 in California → Every provider in Tarzana → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Johnny Chang, MDTarzana, CA 913561366465304
- Mazen Jizzini, MDTarzana, CA 913561346702032
- John Barstis, MDValencia, CA 913551528093085
- Alexander Black, MDSanta Clarita, CA 913551104851500
- Katherine Cohen, FNP-CSanta Clarita, CA 913551043753650
- Christopher Foss, MDSanta Clarita, CA 913551629431044
- George Hajjar, MDSanta Clarita, CA 913551619978715
- Thomas Joseph, MDSanta Clarita, CA 913551861430092
Common questions
What is Ryan Matthew Ponec, MD's NPI number?
Ryan Matthew Ponec, MD's National Provider Identifier (NPI) is 1013335199, issued on Apr 4, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Matthew Ponec, MD located?
The NPPES record lists a practice address at 18133 Ventura Blvd Ste 300, Tarzana, CA, 91356. Phone: (818) 981-3818. Providers update this record themselves, so call before visiting.
How can I verify Ryan Matthew Ponec, MD's license?
NPPES lists California license number A141382, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ryan Matthew Ponec, MD prescribe under Medicare Part D?
In 2024, Ryan Matthew Ponec, MD had 1,361 Medicare Part D claims for 212 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Ryan Matthew Ponec, MD's MIPS final score?
The 2023 MIPS final score is 85.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.