NPPES file of Aug 9, 2026

Connie Hsu, MD

Allergy & Immunology Physician · Litchfield Park, AZ

Connie Hsu, MD is an allergy & immunology physician with a practice address in Litchfield Park, Arizona, and NPI 1619916004, issued on Jun 4, 2006. Check the license (Arizona 35528, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1619916004
Name
Connie Hsu
Credential
MD
Primary taxonomy
Allergy & Immunology Physician 207K00000X
License number
35528 AZ
Self-reported in NPPES; status is on the state search
Practice location
13575 W Indian School RD Ste 200, Litchfield Park, AZ 85340
Phone
(623) 512-4310
Enumerated
Jun 4, 2006
Record last updated
May 22, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(602) 512-4311
Medicaid ID
186990 AZ
Medicare enrollment
Enrolled (PECOS I20070607000102); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 13575 W Indian School RD Ste 200

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Kristen Graham, FNP-BCFamily Nurse Practitioner1588207138
  2. Kristin Oarde, FNP-CFamily Nurse Practitioner1215491097

Verify Connie Hsu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 35528
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Arizona license search

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4% fewer Medicare Part D claims than the average allergy & immunology physician in 2024

713 Medicare Part D claims for 153 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.

  1. Connie Hsu713
  2. Specialty average741

Most prescribed

  1. Montelukast Sodium269 claims
  2. Sodium Chloride35 claims
  3. Gammagard Liquid33 claims
  4. Fluticasone Propionate30 claims
  5. Levocetirizine Dihydrochloride27 claims
  6. Hizentra25 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: $9,712.38

90 payments; by number, the most common kind was food and beverage; the largest payer was Csl Behring. The 2,496 providers of this specialty with any payment received $8,321.81 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Connie Hsu$9,712.38
  2. Specialty average$8,321.81

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

  1. Allergy And Immunology Specialists LLCLitchfield Park, AZ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Connie Hsu among 88 allergy & immunology physician records in Arizona

Connie Hsu, MD is one of 88 allergy & immunology physician records with a practice address in Arizona. 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 2006, is newer than 20% of them.

  • NPI issued2006 · 20% of these records are older, 39% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated1983 · median 2001 among the 57 with a school on file
  • Record last updated2019 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Allergy & Immunology Physician providers in Arizona

There are 88 allergy & immunology physician records in Arizona.

The 8 allergy & immunology physician records with the nearest ZIP codes

  1. Peter Freedman, MDPeoria, AZ 853451518963115
  2. Madhu Narra, M.D., M.S.Yuma, AZ 853641164464590
  3. Uday Reddy, M.D.Yuma, AZ 853671730185711
  4. Joseph Baxter, DOLuke Afb, AZ 853091225274368
  5. Curtis Pacheco, MDLuke Afb, AZ 853091639764186
  6. Amy Shah, M.D.Glendale, AZ 853081376724500
  7. Praveena Kothur, M.D.Glendale, AZ 853061114973179
  8. Jeffrey Lime, MS PA CGlendale, AZ 853041972695914

Common questions

What is Connie Hsu, MD's NPI number?

Connie Hsu, MD's National Provider Identifier (NPI) is 1619916004, issued on Jun 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Connie Hsu, MD located?

The NPPES record lists a practice address at 13575 W Indian School RD Ste 200, Litchfield Park, AZ, 85340. Phone: (623) 512-4310. Providers update this record themselves, so call before visiting.

How can I verify Connie Hsu, MD's license?

NPPES lists Arizona license number 35528, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Connie Hsu, MD prescribe under Medicare Part D?

In 2024, Connie Hsu, MD had 713 Medicare Part D claims for 153 beneficiaries; the average among allergy & immunology physician prescribers was 741. 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.