Nathan Hoyoon Lee, MD
Otolaryngology Physician · Fontana, CA
Nathan Hoyoon Lee, MD is an otolaryngology physician with a practice address in Fontana, California, and NPI 1881223915, issued on Apr 1, 2020. Check the license (California 203752, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nathan Hoyoon Lee
- Credential
- MD
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- 203752 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9961 Sierra Ave, Fontana, CA 92335
- Phone
- (866) 454-3485
- Enumerated
- Apr 1, 2020
- Record last updated
- Nov 23, 2025
- Medicare enrollment
- Enrolled (PECOS I20260108002548); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 1,212 in California → Look up another NPI →
Also registered at 9961 Sierra Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Nathan Hoyoon Lee in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 203752Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average otolaryngology physician in 2024
79 Medicare Part D claims for 52 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
Most prescribed
- Ibuprofen20 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: $309.17
5 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 6,429 providers of this specialty with any payment received $1,922.50 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
- Southern California Permanente Medical GroupFontana, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathan Hoyoon Lee among 1,212 otolaryngology physician records in California
Nathan Hoyoon Lee, MD is one of 1,212 otolaryngology physician records with a practice address in California. 80% 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 93% of them.
- NPI issued2020 · 93% of these records are older, 5% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2020 · median 2004 among the 818 with a school on file
- Record last updated2025 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in California
There are 1,212 otolaryngology physician records in California.
All 1,212 in California → Every provider in Fontana → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Michelle Ghostine, MDFontana, CA 923351548463854
- Lisa Lee, MDFontana, CA 923351396956694
- Zrria Richardson, M.D.Fontana, CA 923351174886113
- Stephen Cannon, M.D.Highland, CA 923461689602013
- Carolyn Doherty, MDColton, CA 923241003862350
- Jeffrey Roberts, MDColton, CA 923241225145915
- Pedro De Andrade Filho, M.D.Loma Linda, CA 923501841580339
- Hector Perez, MDLoma Linda, CA 923501851766422
Common questions
What is Nathan Hoyoon Lee, MD's NPI number?
Nathan Hoyoon Lee, MD's National Provider Identifier (NPI) is 1881223915, issued on Apr 1, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Nathan Hoyoon Lee, MD located?
The NPPES record lists a practice address at 9961 Sierra Ave, Fontana, CA, 92335. Phone: (866) 454-3485. Providers update this record themselves, so call before visiting.
How can I verify Nathan Hoyoon Lee, MD's license?
NPPES lists California license number 203752, 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 Hoyoon Lee, MD prescribe under Medicare Part D?
In 2024, Nathan Hoyoon Lee, MD had 79 Medicare Part D claims for 52 beneficiaries; the average among otolaryngology physician prescribers was 541. 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.