Tiffanie Thy Do, M.D.
Hematology & Oncology Physician · Irvine, CA
Tiffanie Thy Do, M.D. is a hematology & oncology physician with a practice address in Irvine, California, and NPI 1194251710, issued on May 2, 2017. Check the license (California A157687, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Tiffanie Thy Do
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- A157687 CA
Self-reported in NPPES; status is on the state search - Practice location
- 6670 Alton Pkwy, Irvine, CA 92618
- Phone
- (833) 574-2273
- Enumerated
- May 2, 2017
- Record last updated
- Oct 27, 2023
- Medicare enrollment
- Enrolled (PECOS I20231009002690); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 6670 Alton Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brett AkahijiPhysical Therapist1790443356
- Bey-Ying Asada, PTPhysical Therapist1407063027
- Danny Botros, MDPain Medicine (Anesthesiology) Physician1588810816
- Katherine Ceman, RNRegistered Nurse1962377804
- Stacy ChangPsychiatric/Mental Health Nurse Practitioner1821978453
- Wanda Chang, M.D.Physical Medicine & Rehabilitation Physician1336396373
Verify Tiffanie Thy Do in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A157687Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
655 Medicare Part D claims for 129 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims. 16 claims were for opioids.
Most prescribed
- Anastrozole90 claims
- Ondansetron Hcl45 claims
- Dexamethasone44 claims
- Prednisone33 claims
- Abiraterone Acetate22 claims
- Tagrisso22 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupSan Juan Capistrano, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tiffanie Thy Do among 1,583 hematology & oncology physician records in California
Tiffanie Thy Do, 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 2017, is newer than 89% of them.
- NPI issued2017 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2017 · 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 Irvine → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Rafi Ahmed, MDIrvine, CA 926181205093028
- Nader Kashani, MDIrvine, CA 926181285793893
- Sudarsan Kollimuttathuillam, MDIrvine, CA 926181902324528
- Lisa Lee, M.D.Irvine, CA 926181144583733
- David Lou, M.D., PH.D.Irvine, CA 926181477729861
- Charisma Mylavarapu, D.O.Irvine, CA 926181477117653
- Tara SeeryIrvine, CA 926181043415961
- Nerses Tchekmedyian, M.D.Irvine, CA 926181821032129
Common questions
What is Tiffanie Thy Do, M.D.'s NPI number?
Tiffanie Thy Do, M.D.'s National Provider Identifier (NPI) is 1194251710, issued on May 2, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Tiffanie Thy Do, M.D. located?
The NPPES record lists a practice address at 6670 Alton Pkwy, Irvine, CA, 92618. Phone: (833) 574-2273. Providers update this record themselves, so call before visiting.
How can I verify Tiffanie Thy Do, M.D.'s license?
NPPES lists California license number A157687, 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 Tiffanie Thy Do, M.D. prescribe under Medicare Part D?
In 2024, Tiffanie Thy Do, M.D. had 655 Medicare Part D claims for 129 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.