Julio Cesar Alvarenga Thiebaud, M.D.
Hematology (Internal Medicine) Physician · Irvine, CA
Julio Cesar Alvarenga Thiebaud, M.D. is a hematology (internal medicine) physician with a practice address in Irvine, California, and NPI 1457770497, issued on Apr 7, 2014. Check the license (California A167977, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Julio Cesar Alvarenga Thiebaud
- Credential
- M.D.
- Primary taxonomy
- Hematology (Internal Medicine) Physician 207RH0000X
- License numbers
- A167977 CA
T2105 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1000 Fivepoint Ste A, Irvine, CA 92618
- Phone
- (949) 671-8000
- Enumerated
- Apr 7, 2014
- Record last updated
- Apr 9, 2026
- Medicare enrollment
- Enrolled (PECOS I20210807000054); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology (internal medicine) physician records → All 175 in California → Look up another NPI →
Also registered at 1000 Fivepoint Ste A
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ifegwu Ibe, M.D.Anatomic Pathology & Clinical Pathology Physician1831506724
- Michael Kahn, MDCritical Care Medicine (Internal Medicine) Physician1245727320
Verify Julio Cesar Alvarenga Thiebaud in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A167977Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12% fewer Medicare Part D claims than the average hematology (internal medicine) physician in 2024
437 Medicare Part D claims for 42 beneficiaries, against an average of 496 among the 1,036 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Acyclovir71 claims
- Posaconazole24 claims
- Pantoprazole Sodium22 claims
- Lorazepam18 claims
- Sulfamethoxazole-Trimethoprim15 claims
- Sprycel14 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): 100 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).
Industry payments in 2024: $8,422.03
14 payments; by number, the most common kind was food and beverage; the largest payer was Incyte Corporation. The 721 providers of this specialty with any payment received $13,778.35 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
- University OF Texas Southwestern Medical Center AT DallasDallas, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Julio Cesar Alvarenga Thiebaud among 175 hematology (internal medicine) physician records in California
Julio Cesar Alvarenga Thiebaud, M.D. is one of 175 hematology (internal medicine) physician records with a practice address in California. 89% 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, 13% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 78% of these records are
- Graduated2022 · median 2006 among the 135 with a school on file
- Record last updated2026 · 34% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology (Internal Medicine) Physician providers in California
There are 175 hematology (internal medicine) physician records in California.
All 175 in California → Every provider in Irvine → Hematology (Internal Medicine) Physician nationwide →
The 8 hematology (internal medicine) physician records with the nearest ZIP codes
- Azra Borogovac, M.D.Irvine, CA 926181164818639
- Krisstina Gowin, D.O.Irvine, CA 926181477845089
- Benjamin Heyman, M.D.Irvine, CA 926181982995809
- Tamer Othman, M.D.Irvine, CA 926181316471980
- Eduardo Fernandez Hernandez, MDNewport Beach, CA 926631104288125
- Esther Fermin, MDVictorville, CA 923951013018514
- Zahra Pakbaz, MDOrange, CA 928681942463377
- Richard Vanetten, MDOrange, CA 928681760536841
Common questions
What is Julio Cesar Alvarenga Thiebaud, M.D.'s NPI number?
Julio Cesar Alvarenga Thiebaud, M.D.'s National Provider Identifier (NPI) is 1457770497, issued on Apr 7, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Julio Cesar Alvarenga Thiebaud, M.D. located?
The NPPES record lists a practice address at 1000 Fivepoint Ste A, Irvine, CA, 92618. Phone: (949) 671-8000. Providers update this record themselves, so call before visiting.
How can I verify Julio Cesar Alvarenga Thiebaud, M.D.'s license?
NPPES lists California license number A167977, 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 Julio Cesar Alvarenga Thiebaud, M.D. prescribe under Medicare Part D?
In 2024, Julio Cesar Alvarenga Thiebaud, M.D. had 437 Medicare Part D claims for 42 beneficiaries; the average among hematology (internal medicine) physician prescribers was 496. Part D covers Medicare prescriptions only.
What is Julio Cesar Alvarenga Thiebaud, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 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.