Nancy Hsu, MD
Sleep Medicine (Internal Medicine) Physician · La Jolla, CA
Nancy Hsu, MD is a sleep medicine (internal medicine) physician with a practice address in La Jolla, California, and NPI 1265789960, issued on Aug 13, 2012. Check the license (California A126662, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nancy Hsu
- Credential
- MD
- Primary taxonomy
- Sleep Medicine (Internal Medicine) Physician 207RS0012X
- License number
- A126662 CA
Self-reported in NPPES; status is on the state search - Practice location
- 10666 N Torrey Pines RD, La Jolla, CA 92037
- Phone
- (858) 554-8860
- Enumerated
- Aug 13, 2012
- Record last updated
- Dec 18, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20170317000762); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest sleep medicine (internal medicine) physician records → All 129 in California → Look up another NPI →
Also registered at 10666 N Torrey Pines RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Edsel Abud, MD, PHDAllergy & Immunology Physician1891257192
- Christina Adams, MDCardiovascular Disease Physician1023164605
- Dylan Adamson, M.D.Transplant Surgery Physician1598030702
Verify Nancy Hsu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A126662Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.7 times the Medicare Part D claims of the average sleep medicine (internal medicine) physician in 2024
1,597 Medicare Part D claims for 327 beneficiaries, against an average of 585 among the 852 providers of this specialty who prescribed in Part D. Brand-name drugs were 51% of claims.
Most prescribed
- Trelegy Ellipta231 claims
- Albuterol Sulfate Hfa146 claims
- Breztri Aerosphere116 claims
- Anoro Ellipta100 claims
- Gabapentin100 claims
- Fluticasone Propionate72 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: $1,421.02
57 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 664 providers of this specialty with any payment received $3,724.37 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
- Scripps HealthLa Jolla, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nancy Hsu among 129 sleep medicine (internal medicine) physician records in California
Nancy Hsu, MD is one of 129 sleep medicine (internal medicine) physician records with a practice address in California. 95% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 55% of them.
- NPI issued2012 · 55% of these records are older, 40% newer
- In a Medicare fileYes · 95% of these records are
- In the CMS Doctors and Clinicians fileYes · 82% of these records are
- Graduated2012 · median 2006 among the 106 with a school on file
- Record last updated2019 · 35% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RS0012X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Sleep Medicine (Internal Medicine) Physician providers in California
There are 129 sleep medicine (internal medicine) physician records in California.
All 129 in California → Every provider in La Jolla → Sleep Medicine (Internal Medicine) Physician nationwide →
The 8 sleep medicine (internal medicine) physician records with the nearest ZIP codes
- Fahima NadiEl Cajon, CA 920191770072290
- Lawrence Kline, D.O.San Diego, CA 921031730140278
- Jose Loredo, M.D.San Diego, CA 921031891728531
- Atul Malhotra, MDSan Diego, CA 921031982695169
- Robert Owens, MDSan Diego, CA 921031972589265
- Christopher Schmickl, M.D., M.P.H.San Diego, CA 921031720498496
- Lisa Shives, M.D.San Diego, CA 921031740322825
- Robert Bercovitch, MDSan Diego, CA 921201184819237
Common questions
What is Nancy Hsu, MD's NPI number?
Nancy Hsu, MD's National Provider Identifier (NPI) is 1265789960, issued on Aug 13, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Nancy Hsu, MD located?
The NPPES record lists a practice address at 10666 N Torrey Pines RD, La Jolla, CA, 92037. Phone: (858) 554-8860. Providers update this record themselves, so call before visiting.
How can I verify Nancy Hsu, MD's license?
NPPES lists California license number A126662, 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 Nancy Hsu, MD prescribe under Medicare Part D?
In 2024, Nancy Hsu, MD had 1,597 Medicare Part D claims for 327 beneficiaries; the average among sleep medicine (internal medicine) physician prescribers was 585. 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.