Greg R. Angstreich, MD
Hematology & Oncology Physician · Newport Beach, CA
Greg R. Angstreich, MD is a hematology & oncology physician with a practice address in Newport Beach, California, and NPI 1659303873, issued on Jul 7, 2006. Check the license (California C54662, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Greg R. Angstreich
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- C54662 CA
Self-reported in NPPES; status is on the state search - Practice location
- 520 Superior Ave, Newport Beach, CA 92663
- Phone
- (949) 646-6441
- Enumerated
- Jul 7, 2006
- Record last updated
- Nov 27, 2023
- Fax
- (949) 646-5719
- Medicare enrollment
- Enrolled (PECOS I20110719000851); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 1997
- 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 520 Superior Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- John Champion, M.D.Cardiovascular Disease Physician1801980669
- Glenn Chiang, M.D.Nephrology Physician1285697227
Verify Greg R. Angstreich in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C54662Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
390 Medicare Part D claims for 127 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 45 claims were for opioids.
Most prescribed
- Prednisone37 claims
- Eliquis34 claims
- Anastrozole16 claims
- Venlafaxine Hcl Er15 claims
- Hydrocodone-Acetaminophen14 claims
- Hydroxyurea13 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: $100.52
6 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. 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 one group practice
- 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).
Greg R. Angstreich among 1,583 hematology & oncology physician records in California
Greg R. Angstreich, 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 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 54% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1997 · median 2003 among the 1,124 with a school on file
- Record last updated2023 · 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
- David Benjamin, MDNewport Beach, CA 926631821450396
- Sara Beygi, M.D.Newport Beach, CA 926631396132114
- Benjamin Goldenson, MDNewport Beach, CA 926631588053458
- Dilruba Haque, M.D.Newport Beach, CA 926631689838641
- Simon Khagi, M.D.Newport Beach, CA 926631710121165
- Sharmeen MahmoodNewport Beach, CA 926631639603236
- Minh Nguyen, MDNewport Beach, CA 926631740316272
- Andrea Stebel, M.D.Newport Beach, CA 926631447258389
Common questions
What is Greg R. Angstreich, MD's NPI number?
Greg R. Angstreich, MD's National Provider Identifier (NPI) is 1659303873, issued on Jul 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Greg R. Angstreich, MD located?
The NPPES record lists a practice address at 520 Superior Ave, Newport Beach, CA, 92663. Phone: (949) 646-6441. Providers update this record themselves, so call before visiting.
How can I verify Greg R. Angstreich, MD's license?
NPPES lists California license number C54662, 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 Greg R. Angstreich, MD prescribe under Medicare Part D?
In 2024, Greg R. Angstreich, MD had 390 Medicare Part D claims for 127 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.