Darwin Roman, M.D.
Hematology & Oncology Physician · Newport Beach, CA
Darwin Roman, M.D. is a hematology & oncology physician with a practice address in Newport Beach, California, and NPI 1821478082, issued on Jun 3, 2015. Check the license (California A161572, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Darwin Roman
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- A161572 CA
31646 OK
Self-reported in NPPES; status is on the state search - Practice location
- 1441 Avocado Ave Ste 301, Newport Beach, CA 92660
- Phone
- (657) 241-9805
- Enumerated
- Jun 3, 2015
- Record last updated
- Nov 7, 2025
- Fax
- (949) 272-2096
- Medicare enrollment
- Enrolled (PECOS I20220824001325); accepts Medicare assignment
- Medical or professional school
- University Of Oklahoma College Of Medicine, 2015
- 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 1441 Avocado Ave Ste 301
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Donna Flynn, RNPObstetrics & Gynecology Nurse Practitioner1851505135
- Wael Harb, MDHematology & Oncology Physician1861468415
- Ryan MoorePlastic Surgery Physician1356761415
- Christina Prendergast, D.O.Plastic and Reconstructive Surgery Physician1164650669
- Manuela Vazquez, M.D.Obstetrics & Gynecology Physician1831355015
Verify Darwin Roman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A161572Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
150 Medicare Part D claims for 16 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 40% of claims.
Most prescribed
- Eliquis20 claims
- Gabapentin15 claims
- Creon12 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.
Industry payments in 2024: $24.69
1 payment: food and beverage; the largest payer was GlaxoSmithKline, LLC. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Memorialcare Medical FoundationNewport Beach, CA
- Usc Care Medical Group IncNewport Beach, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Darwin Roman among 1,583 hematology & oncology physician records in California
Darwin Roman, M.D. 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 2015, is newer than 84% of them.
- NPI issued2015 · 84% of these records are older, 13% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2015 · median 2003 among the 1,124 with a school on file
- Record last updated2025 · 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 Newport Beach → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Neil Barth, M.D.Newport Beach, CA 926601245379858
- Robert Carroll, M.D.Newport Beach, CA 926601295875854
- Wael Harb, MDNewport Beach, CA 926601861468415
- Misagh Karimi, MDNewport Beach, CA 926601770583197
- Irina Sachelarie, M.D.Newport Beach, CA 926601730139387
- George Semeniuk, M.D.Newport Beach, CA 926601316022924
- Wade Smith, M.D.Newport Beach, CA 926601730240219
- Tingting Tan, M.D. PH.D.Newport Beach, CA 926601669627238
Common questions
What is Darwin Roman, M.D.'s NPI number?
Darwin Roman, M.D.'s National Provider Identifier (NPI) is 1821478082, issued on Jun 3, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Darwin Roman, M.D. located?
The NPPES record lists a practice address at 1441 Avocado Ave Ste 301, Newport Beach, CA, 92660. Phone: (657) 241-9805. Providers update this record themselves, so call before visiting.
How can I verify Darwin Roman, M.D.'s license?
NPPES lists California license number A161572, 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 Darwin Roman, M.D. prescribe under Medicare Part D?
In 2024, Darwin Roman, M.D. had 150 Medicare Part D claims for 16 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
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.