Nathan S. Chung, MD
Surgery Physician · Apple Valley, CA
Nathan S. Chung, MD is a surgery physician with a practice address in Apple Valley, California, and NPI 1144249152, issued on Jul 19, 2006. Check the license (California A60371, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nathan S. Chung
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- A60371 CA
Self-reported in NPPES; status is on the state search - Practice location
- 19341 Bear Valley Road, Apple Valley, CA 92308
- Phone
- (760) 247-0333
- Enumerated
- Jul 19, 2006
- Record last updated
- Jun 18, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (760) 247-8492
- Medicare enrollment
- Enrolled (PECOS I20051013000520); accepts Medicare assignment
- Medical or professional school
- Medico Chirurgical College Of Philadelphia, 1994
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 3,118 in California → Look up another NPI →
Verify Nathan S. Chung in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A60371Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% more Medicare Part D claims than the average surgery physician in 2024
197 Medicare Part D claims for 125 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Doxycycline Hyclate37 claims
- Cephalexin33 claims
- Amoxicillin-Clavulanate Potass21 claims
- Gentamicin Sulfate18 claims
- Mupirocin18 claims
- Ssd12 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): 48.3 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: $924.46
18 payments; by number, the most common kind was food and beverage; the largest payer was Organogenesis Inc. The 17,103 providers of this specialty with any payment received $3,513.80 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.
Nathan S. Chung among 3,118 surgery physician records in California
Nathan S. Chung, MD is one of 3,118 surgery physician records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1994 · median 2003 among the 1,901 with a school on file
- Record last updated2008 · 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 208600000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 surgery physician records list a practice address in Apple Valley
They are 12 of the 1,518 NPPES records with a practice address in Apple Valley, and 3,118 surgery physician records in California.
All 3,118 in California → Every provider in Apple Valley → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Ramanan Umakanthan, MDApple Valley, CA 923081700377413
- Vincent Ajanwachuku, M.D.Apple Valley, CA 923071427127075
- Rao Daluvoy, MDApple Valley, CA 923071003902081
- Peter Fischl, MALApple Valley, CA 923071841374055
- Rakesh Grover, MDApple Valley, CA 923071790836153
- James Hartleroad, M.D.Apple Valley, CA 923071336189067
- Chris Okwuosa, M.D.Apple Valley, CA 923071114336260
- Brian Patterson, MD, MPHApple Valley, CA 923071518321157
Common questions
What is Nathan S. Chung, MD's NPI number?
Nathan S. Chung, MD's National Provider Identifier (NPI) is 1144249152, issued on Jul 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nathan S. Chung, MD located?
The NPPES record lists a practice address at 19341 Bear Valley Road, Apple Valley, CA, 92308. Phone: (760) 247-0333. Providers update this record themselves, so call before visiting.
How can I verify Nathan S. Chung, MD's license?
NPPES lists California license number A60371, 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 S. Chung, MD prescribe under Medicare Part D?
In 2024, Nathan S. Chung, MD had 197 Medicare Part D claims for 125 beneficiaries; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.
What is Nathan S. Chung, MD's MIPS final score?
The 2023 MIPS final score is 48.3 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.