Dr. Nancy Hsu, MD

  • La Jolla, CA
  • Sleep medicine (internal medicine) physician
NPI1265789960PAC ID9032494836
Medicare services, 2024
2,555
Medicare patients, 2024
1,186
Part D claims, 2024
1,597
Publications
4
Hospital affiliations
2
Practice address
10666 North Torrey Pines Road, La Jolla, CA 92037
Practice phone
Call (858) 554-3600
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Scripps Green Hospital

Hospital · La Jolla, California

See all 5 affiliations

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Dr. Nancy Hsu is a sleep medicine (internal medicine) physician in La Jolla, California

Dr. Hsu practices at Scripps Green Hospital in La Jolla, California, part of Scripps Health.

Dr. Hsu's NPI, 1265789960, was assigned on August 13, 2012. Dr. Hsu graduated from UCSF School of Medicine in 2012. Dr. Hsu holds California license A126662.

NPI and contact details
Medicare PAC ID
9032494836
NPI enumeration date
August 13, 2012
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(858) 554-3600
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
40
Medical school graduation
2012

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Nancy Hsu practices at Scripps Green Hospital in La Jolla, California

Dr. Hsu's primary practice is Scripps Green Hospital, at 10666 North Torrey Pines Road, La Jolla, CA 92037 in San Diego County. The practice phone is (858) 554-3600.

  • Scripps Green Hospital
    10666 North Torrey Pines Road, La Jolla, CA 92037 · San Diego CountyPhone(858) 554-3600

Source: Dmand AI Affiliation Data

Dr. Nancy Hsu is affiliated with 4 sites of care and 1 medical group

Dr. Hsu's primary practice is Scripps Green Hospital in La Jolla, California, part of Scripps Health. Dr. Hsu is also affiliated with Scripps Memorial Hospital La Jolla. The medical group on file is Scripps Clinic Medical Group. Dmand AI also links Dr. Hsu to 1 more breast imaging center and 1 urgent care center, each named with a free account.

See all 5 affiliations for Dr. Hsu

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Nancy Hsu's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hsu practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Scripps Green HospitalAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Nancy Hsu is one of 115 sleep medicine (internal medicine) physicians in California

Internal medicine is Dr. Hsu's primary specialty in the NPI Registry, under taxonomy code 207RS0012X. The record also lists sleep medicine. Dr. Hsu is board certified in critical care medicine by the American Board of Internal Medicine. Dr. Hsu is licensed in California.

Specialties and state licenses

  • Sleep medicine (internal medicine), CaliforniaPrimaryLicense A126662 · 2013 to 2027 · taxonomy 207RS0012X

Clinical focus

Dmand AI lists acute sinusitis, asthma, chronic lung disease, chronic obstructive pulmonary disease (COPD), chronic respiratory failure, hypersomnia, pleural effusion and pneumonia among the conditions Dr. Hsu treats.

Sleep medicine (internal medicine) physicians near Dr. Hsu

Counts of sleep medicine (internal medicine) physicians with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Nancy Hsu billed Medicare for 2,555 services in 2024

CMS data shows 2,555 Medicare services from Dr. Hsu across 11 procedure codes in 2024, for 1,186 Medicare patients. Medicare paid $286,975 for them. Every service was in an office.

Medicare services, 20242,555
Medicare patients1,186
Paid by Medicare$286,975
Procedure codes11

Dr. Hsu's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1,1502024: 1,32815%
Other services
2023: 2362024: 641172%
Tests and treatments
2023: 1472024: 586299%

Dr. Hsu compared with the California median for sleep medicine (internal medicine) physicians, 2024

  • Dr. Hsu
  • California median
Medicare services
2,555vs 4545.6 times
Medicare patients
1,186vs 2554.7 times
Part D claims
1,431vs 12411.5 times

Medians across 111 sleep medicine (internal medicine) physicians in California with Dmand AI profiles that report each measure.

Dr. Hsu's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Hsu

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hsu and other sleep medicine (internal medicine) physicians in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Nancy Hsu treated 1,186 Medicare patients in 2024, average age 75

CMS counts 1,186 Medicare patients who saw Dr. Hsu in 2024. The largest group is 65 to 74, with 591 patients. 75% of them have high cholesterol, and 68% have high blood pressure. 5% are also on Medicaid. Their average risk score is 1.15, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Hsu's median patient age at 56, with 44% women.

Medicare patients, 20241,186
Average age75
Average risk score1.15
Also on Medicaid5%

Dr. Hsu's Medicare patients by age, 2024

Dr. Hsu's Medicare patients by sex, 2024

  • Women61252%
  • Men57448%

Chronic conditions among Dr. Hsu's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure68%
  3. Arthritis46%
  4. Ischemic heart disease31%
  5. Mood disorders26%
  6. Diabetes25%
  7. Atrial fibrillation23%
  8. Depression23%

Share of Medicare patients with each condition. A patient can have several.

Dr. Hsu's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 56

Patient panel by sex, all payers

  • Women44%
  • Men55%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Nancy Hsu wrote 1,597 Medicare Part D claims in 2024

In 2024, Dr. Hsu wrote 1,597 Medicare Part D claims for 327 patients. 49% of them were for generic drugs. CMS names the drug for 1,431 of them, across 31 drugs with 11 or more claims each, at $817,693 in total drug cost. In 2023, CMS named 1,866 claims across 37 drugs.

Part D claims, 20241,597
Drugs named by CMS31
Total drug cost$817,693
Part D patients327

Dr. Hsu's Part D claims by kind of drug, 2024

  • Generic776 claims49%
  • Brand-name821 claims51%

Dr. Hsu's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Hsu's Part D claims, 2024

  • Antibiotics1%22 of 1,597 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1,8662024: 1,43123%

Drugs named by CMS: 31 in 2024, 37 in 2023.

See all prescribing by Dr. Hsu

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Nancy Hsu offers telehealth to Medicare patients

Dr. Hsu accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hsu as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Nancy Hsu has 4 publications on record

Dmand AI links 4 papers to Dr. Hsu, published from 2011 to 2019. Dr. Hsu's most frequent co-authors are Melisa R. Chang, MD, Kelley I-Kai Chuang, MD and Hobart W. Harris, MD.

Papers4
Years published2011 to 2019

Dr. Hsu's most frequent co-authors

Recent publications by Dr. Hsu

See all 4 publications and co-authors

See who Dr. Hsu researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hsu works with, so you can find a warm path to the right sleep medicine (internal medicine) physicians.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Nancy Hsu received $9,161 in industry payments from 2016 to 2025

CMS Open Payments shows 314 general payments to Dr. Hsu from 45 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 92% of the total. GlaxoSmithKline, LLC. paid the most, $2,080.

General payments to Dr. Hsu by program year, 2016 to 2025

General payments to Dr. Hsu by kind, 2016 to 2025

$9.2Kin total
  • Food and beverage$8,41892%
  • Consulting fees$5506%
  • Education$1932%

Companies that paid Dr. Hsu the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Hsu

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Nancy Hsu has 9 awards and honors on record

Dmand AI lists 9 awards for Dr. Hsu, most recently Academic Sleep Pulmonary Integrated Research/Clinical Fellowship (ASPIRE) in 2018.

Awards and honors for Dr. Hsu

  1. 2018
    • Academic Sleep Pulmonary Integrated Research/Clinical Fellowship (ASPIRE)
  2. 2017
    • Fellow Teaching Award Nominee
  3. 2009
    • Gene & Marilyn Nuziard Healthcare Scholarship
  4. 2008
    • Chancellor's Service Award
    • Dean's Scholarship
    • Healthcare Scholarship
See all 9 awards

Source: Dmand AI Professional Profile Data

Dr. Nancy Hsu graduated from UCSF School of Medicine

Dr. Hsu graduated from UCSF School of Medicine in 2012. Dr. Hsu is a member of AASM, ACCP and ATS.

  1. Medical schoolUCSF School of Medicine
  2. Board certified in critical care medicineAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine
  4. Board certified in pulmonary diseaseAmerican Board of Internal Medicine
  5. Board certified in sleep medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Nancy Hsu accepts plans from 9 insurance carriers

Dr. Hsu is in network with 9 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

  • Aetna
  • United Healthcare
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • Blue Cross and Blue Shield of Kansas City
  • CMS Medicare
  • +1 more carriersWith a free account

Plan types Dr. Hsu accepts, by number of carriers

  1. Medicare6
  2. PPO6
  3. HMO3
  4. POS3
  5. EPO2
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Nancy Hsu's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Nancy Hsu

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Nancy Hsu's NPI number?

Dr. Nancy Hsu's NPI number is 1265789960. It was assigned on August 13, 2012, and it is active in the NPI Registry.

What kind of doctor is Dr. Nancy Hsu?

Dr. Nancy Hsu is a sleep medicine (internal medicine) physician in La Jolla, California. The primary specialty in the NPI Registry is Sleep Medicine (Internal Medicine) Physician (taxonomy code 207RS0012X).

Where does Dr. Nancy Hsu practice?

Dr. Hsu practices at 10666 North Torrey Pines Road, La Jolla, CA 92037. Dr. Hsu's primary practice is Scripps Green Hospital in La Jolla, California, part of Scripps Health. Dmand AI also links Dr. Hsu to 1 breast imaging center and 1 urgent care center.

What is Dr. Nancy Hsu's office phone number?

The practice phone on file for Dr. Hsu is (858) 554-3600.

What is Dr. Nancy Hsu's medical license number?

Dr. Hsu holds California license A126662.

Which hospitals is Dr. Nancy Hsu affiliated with?

Dr. Hsu practices at Scripps Green Hospital in La Jolla, California. Dr. Hsu is also affiliated with Scripps Memorial Hospital La Jolla.

What medical group is Dr. Nancy Hsu part of?

Dr. Hsu is linked to Scripps Clinic Medical Group.

Does Dr. Nancy Hsu accept Medicare?

Yes. CMS data shows Dr. Hsu billed Medicare for 2,555 services in 2024, and Dr. Hsu accepts Medicare assignment.

Does Dr. Nancy Hsu offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Hsu as offering telehealth services.

How many Medicare patients does Dr. Nancy Hsu see?

CMS counts 1,186 Medicare patients who saw Dr. Hsu in 2024, with an average age of 75.

Show 9 more questionsShow fewer questions

Is Dr. Nancy Hsu board certified?

Yes. Dr. Hsu is board certified in critical care medicine by the American Board of Internal Medicine.

What services does Dr. Nancy Hsu bill to Medicare?

In 2024, Dr. Hsu's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and nerve and brain test (95800).

Where did Dr. Nancy Hsu go to medical school?

Dr. Hsu graduated from UCSF School of Medicine in 2012.

What drugs does Dr. Nancy Hsu prescribe most?

In 2024 Medicare Part D data, Dr. Hsu's most prescribed drugs by claims were Trelegy Ellipta, Albuterol Sulfate Hfa and Breztri Aerosphere.

Has Dr. Nancy Hsu received payments from drug or device companies?

CMS Open Payments shows $9,161 in general payments to Dr. Hsu from 45 companies from 2016 to 2025. The largest total came from GlaxoSmithKline, LLC.

How long has Dr. Nancy Hsu been practicing?

Dr. Hsu graduated from medical school in 2012, 14 years ago.

Does Dr. Nancy Hsu do research?

Dmand AI links 4 publications to Dr. Hsu, published from 2011 to 2019.

Who does Dr. Nancy Hsu publish with?

Dr. Hsu's most frequent co-authors are Melisa R. Chang, MD (1 shared paper), Kelley I-Kai Chuang, MD (1 shared paper) and Hobart W. Harris, MD (1 shared paper).

What insurance does Dr. Nancy Hsu accept?

Dr. Hsu is in network with 9 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

Selling to internal medicine practices?

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