Stavroula Anastasia Otis, M.D.
Hematology & Oncology Physician · Orange, CA
Stavroula Anastasia Otis, M.D. is a hematology & oncology physician with a practice address in Orange, California, and NPI 1477677557, issued on Mar 16, 2007. Check the license (California A100358, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stavroula Anastasia Otis
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- A100358 CA
Self-reported in NPPES; status is on the state search - Practice location
- 363 S Main St Ste 485, Orange, CA 92868
- Phone
- (714) 835-4800
- Enumerated
- Mar 16, 2007
- Record last updated
- Jan 23, 2024
- Medicare enrollment
- Enrolled (PECOS I20120501000663); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 2003
- 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 363 S Main St Ste 485
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kaitlin Jones-Grilli, PA-CPhysician Assistant1134611320
- Sarah Schreiber, PAPhysician Assistant1750038113
- Hannah Son, PA-CMedical Physician Assistant1114774130
- Donna Valentine, PHYSICIAN ASSISTANTPhysician Assistant1801995410
Verify Stavroula Anastasia Otis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A100358Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
545 Medicare Part D claims for 133 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.
Most prescribed
- Anastrozole77 claims
- Prochlorperazine Maleate31 claims
- Lorazepam29 claims
- Letrozole27 claims
- Ondansetron Hcl26 claims
- Eliquis24 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 MIPS final score for 2023 (Medicare payment program): 97.2 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $2,529.08
116 payments; by number, the most common kind was food and beverage; the largest payer was Daiichi Sankyo 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
- Center For Cancer And Blood DisordersSanta Ana, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stavroula Anastasia Otis among 1,583 hematology & oncology physician records in California
Stavroula Anastasia Otis, 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 2007, is newer than 46% of them.
- NPI issued2007 · 46% of these records are older, 40% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2003 · median 2003 among the 1,124 with a school on file
- Record last updated2024 · 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 Orange → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Timothy Byun, MDOrange, CA 928681871545012
- Warren Chow, MDOrange, CA 928681093822017
- Paul Coluzzi, M.D.Orange, CA 928681972563906
- Mihaela Cristea, MDOrange, CA 928681417050998
- Sam Huang, M.D.Orange, CA 928681841248812
- Tiberio Lindgren, MDOrange, CA 928681275585424
- John Link, MDOrange, CA 928681245281211
- Steven Lipkin, MDOrange, CA 928681134153547
Common questions
What is Stavroula Anastasia Otis, M.D.'s NPI number?
Stavroula Anastasia Otis, M.D.'s National Provider Identifier (NPI) is 1477677557, issued on Mar 16, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Stavroula Anastasia Otis, M.D. located?
The NPPES record lists a practice address at 363 S Main St Ste 485, Orange, CA, 92868. Phone: (714) 835-4800. Providers update this record themselves, so call before visiting.
How can I verify Stavroula Anastasia Otis, M.D.'s license?
NPPES lists California license number A100358, 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 Stavroula Anastasia Otis, M.D. prescribe under Medicare Part D?
In 2024, Stavroula Anastasia Otis, M.D. had 545 Medicare Part D claims for 133 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Stavroula Anastasia Otis, M.D.'s MIPS final score?
The 2023 MIPS final score is 97.2 of 100. 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.