NPPES file of Aug 9, 2026

Shirley S. Joo, MD

Allergy & Immunology (Internal Medicine) Physician · Saint Louis, MO

Shirley S. Joo, MD is an allergy & immunology (internal medicine) physician with a practice address in Saint Louis, Missouri, and NPI 1144262825, issued on Jun 10, 2006. Check the license (Missouri 2001009169, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; 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
1144262825
Name
Shirley S. Joo
Credential
MD
Primary taxonomy
Allergy & Immunology (Internal Medicine) Physician 207RA0201X
License number
2001009169 MO
Self-reported in NPPES; status is on the state search
Practice location
615 S New Ballas RD, Saint Louis, MO 63141
Phone
(314) 251-6382
Enumerated
Jun 10, 2006
Record last updated
Jun 19, 2024
Medicaid ID
205801004 MO
Medicare enrollment
Enrolled (PECOS I20071010000492); accepts Medicare assignment
Medical or professional school
Loyola University Of Chicago, Stritch School Of Medicine, 1999
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 615 S New Ballas RD

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

  1. Hajira Abbasi, DOInternal Medicine Physician1194036947
  2. Wael Abduljaber, MDInternal Medicine Physician1174101489
  3. Frederick Abele, M.D.Anesthesiology Physician1346245354
  4. Jane Abele, CRNACertified Registered Nurse Anesthetist1578564647
  5. Joy Abu-Shanab, PHARM. D, BCPSPharmacotherapy Pharmacist1568532216
  6. Yaseen Adam, MDHospitalist Physician1932278587

Verify Shirley S. Joo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license 2001009169
    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 Missouri license search

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65% fewer Medicare Part D claims than the average allergy & immunology (internal medicine) physician in 2024

273 Medicare Part D claims for 90 beneficiaries, against an average of 789 among the 429 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.

  1. Shirley Joo273
  2. Specialty average789

Most prescribed

  1. Montelukast Sodium60 claims
  2. Fluticasone Propionate33 claims
  3. Breo Ellipta26 claims
  4. Ipratropium Bromide16 claims
  5. Azelastine Hcl15 claims
  6. Prednisone15 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: $135.15

8 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 321 providers of this specialty with any payment received $7,456.30 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Shirley Joo$135.15
  2. Specialty average$7,456.30

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. Mercy Hospitals East CommunitiesSt Louis, MO

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

Shirley S. Joo among 28 allergy & immunology (internal medicine) physician records in Missouri

Shirley S. Joo, MD is one of 28 allergy & immunology (internal medicine) physician records with a practice address in Missouri. 86% 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 0% of them.

  • NPI issued2006 · 0% of these records are older, 57% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated1999 · median 2006 among the 20 with a school on file
  • Record last updated2024 · 32% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RA0201X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Allergy & Immunology (Internal Medicine) Physician providers in Missouri

There are 28 allergy & immunology (internal medicine) physician records in Missouri.

The 8 allergy & immunology (internal medicine) physician records with the nearest ZIP codes

  1. Maya Jerath, MDSaint Louis, MO 631411467661801
  2. Barbara Jost, MDSaint Louis, MO 631411144243031
  3. Armen Sanosyan, MDSaint Louis, MO 631411538721295
  4. H Wedner, MDSaint Louis, MO 631411386661809
  5. Tiffany Dy, MDSaint Louis, MO 631291528292174
  6. Omar Elsayed-Ali, MDSaint Louis, MO 631291174064596
  7. Jennifer Monroy, MDSaint Louis, MO 631291669633889
  8. Cheshil Dixit, MDSaint Louis, MO 631271821452863

Common questions

What is Shirley S. Joo, MD's NPI number?

Shirley S. Joo, MD's National Provider Identifier (NPI) is 1144262825, issued on Jun 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Shirley S. Joo, MD located?

The NPPES record lists a practice address at 615 S New Ballas RD, Saint Louis, MO, 63141. Phone: (314) 251-6382. Providers update this record themselves, so call before visiting.

How can I verify Shirley S. Joo, MD's license?

NPPES lists Missouri license number 2001009169, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Shirley S. Joo, MD prescribe under Medicare Part D?

In 2024, Shirley S. Joo, MD had 273 Medicare Part D claims for 90 beneficiaries; the average among allergy & immunology (internal medicine) physician prescribers was 789. 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.