Nathan John Jasperse, MD
Emergency Medicine Physician · Whittier, CA
Nathan John Jasperse, MD is an emergency medicine physician with a practice address in Whittier, California, and NPI 1821625229, issued on Mar 25, 2020. Check the license (California 180970, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nathan John Jasperse
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 180970 CA
Self-reported in NPPES; status is on the state search - Practice location
- 12401 Washington Blvd, Whittier, CA 90602
- Phone
- (562) 698-0811
- Enumerated
- Mar 25, 2020
- Record last updated
- Aug 5, 2024
- Medicare enrollment
- Enrolled (PECOS I20220720003234); accepts Medicare assignment
- Medical or professional school
- University Of California, Irvine, California College Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 12401 Washington Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Johanna Aceves, NPNurse Practitioner1841415502
- Kariann Akiyama, MS, RDN, CNSCRegistered Dietitian1639870009
- Syed Ali, MDAnesthesiology Physician1295775625
- Jamee Ambariantz, PAPhysician Assistant1790726123
- Talin Azilazyan, PHARMDPharmacist1700739372
Verify Nathan John Jasperse in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 180970Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average emergency medicine physician in 2024
118 Medicare Part D claims for 84 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Amoxicillin-Clavulanate Potass15 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
- Intercommunity Emergency Medical GroupWhittier, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathan John Jasperse among 7,751 emergency medicine physician records in California
Nathan John Jasperse, MD is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 88% of them.
- NPI issued2020 · 88% of these records are older, 8% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2020 · median 2011 among the 4,560 with a school on file
- Record last updated2024 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
48 emergency medicine physician records list a practice address in Whittier
They are 48 of the 2,836 NPPES records with a practice address in Whittier, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Whittier → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Joyce Bond, PAWhittier, CA 906021982633400
- Steven Chin, MDWhittier, CA 906021952345019
- Dennis Conneen, DOWhittier, CA 906021316981483
- Jaime Gonzalez, MDWhittier, CA 906021730116385
- Hoori Hovanessian, MDWhittier, CA 906021578599825
- Edward Jarema, MDWhittier, CA 906021659307908
- Michael Martin, MDWhittier, CA 906021740217447
- Mary Anne Mrdeza, MDWhittier, CA 906021811923329
Common questions
What is Nathan John Jasperse, MD's NPI number?
Nathan John Jasperse, MD's National Provider Identifier (NPI) is 1821625229, issued on Mar 25, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Nathan John Jasperse, MD located?
The NPPES record lists a practice address at 12401 Washington Blvd, Whittier, CA, 90602. Phone: (562) 698-0811. Providers update this record themselves, so call before visiting.
How can I verify Nathan John Jasperse, MD's license?
NPPES lists California license number 180970, 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 Nathan John Jasperse, MD prescribe under Medicare Part D?
In 2024, Nathan John Jasperse, MD had 118 Medicare Part D claims for 84 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.