Shirley Joo, MD
NPI 1144262825 · Allergy & Immunology (Internal Medicine) Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shirley Joo, MD is a Allergy & Immunology (Internal Medicine) Physician provider in Saint Louis, MO (NPI 1144262825).
Provider details
- NPI number
- 1144262825
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 2001009169 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,230 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Professional Service for Preparation and Provision of 1 Or More Antigens95165 | 760 | $13 |
| Professional Service for Multiple Injections of Allergen95117 | 305 | $11 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 71 | $63 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 30 | $82 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 29 | $93 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Montelukast Sodium | 60 | 26 |
| Fluticasone Propionate | 33 | 14 |
| Fluticasone/Vilanterolbrand: Breo Ellipta | 26 | — |
| Ipratropium Bromide | 16 | — |
| Azelastine Hcl | 15 | — |
| Prednisone | 15 | 14 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$135 across 8 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-10
- Last updated
- 2024-06-19
- Certified
- 2024-06-19
Frequently asked questions
- What is Shirley Joo's NPI number?
- Shirley Joo's National Provider Identifier (NPI) is 1144262825, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shirley Joo's specialty?
- Shirley Joo is listed in the NPPES registry with a primary specialty of Allergy & Immunology (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Shirley Joo located?
- Shirley Joo's practice location on file with NPPES is 615 S New Ballas Rd, Saint Louis, MO 63141-8221.
- What is Shirley Joo's phone number?
- The practice phone number listed in the NPPES registry for Shirley Joo is (314) 251-6382.
- Does Shirley Joo accept Medicare?
- Shirley Joo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shirley Joo's NPI active?
- Yes — Shirley Joo's NPI (1144262825) is active in the NPPES registry as of the last update on 2024-06-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.