1. Home
  2. Directory
  3. Missouri
  4. Saint Louis
  5. Internal Medicine
  6. NPI Profile

DR. SHIRLEY S JOO MD
NPI 1144262825
Internal Medicine - Allergy & Immunology in Saint Louis, MO

Active since June 10, 2006PECOS EnrolledAccepts Medicare Assignment
615 S NEW BALLAS RD, SAINT LOUIS, MO 63141(314) 251-6382 Get Directions Write a Review

NPPES record last updated: June 19, 2024. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 19, 2024, Dec 3, 2018 (2 updates tracked since 2018).

About Dr. Shirley S Joo Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. SHIRLEY S JOO MD (NPI 1144262825) is an individual allergy & immunology provider in Saint Louis, Missouri, licensed in Missouri (2001009169) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and is a graduate of Loyola University Of Chicago, Stritch School Of Medicine (1999).

NPPES Registry Identity

NPI1144262825
Entity TypeIndividualFemale
Primary Taxonomy207RA0201X
Provider Legal NameDR. SHIRLEY S JOOCredential: MD
Location Address615 S NEW BALLAS RDSaint Louis, MO 63141-8221
Mailing Address615 S New Ballas RdSaint Louis, MO 63141-8221 · (314) 251-6382
Phone(314) 251-6382
Sole ProprietorNo
Medical School CMSLoyola University Of Chicago, Stritch School Of MedicineGraduated 1999
Enumeration DateJune 10, 2006
Last NPPES UpdateJune 19, 20242 updates tracked since enumeration
NPPES CertifiedJune 19, 2024
✔ NPI 1144262825 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Allergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207RA0201X
License✔ Licensed in MO · 2001009169
Definition
An internist doctor of osteopathy that specializes in the treatment of allergy and immunologic disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine can obtain a Certificate of Special Qualifications in the field of Allergy & Immunology.
615 S NEW BALLAS RD, Saint Louis, MO 63141
Open in Google Maps ↗

Other Identifiers 1

Medicaid205801004MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Shirley S Joo Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9830285618
PECOS Enrollment IDI20071010000492
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Professional service for preparation and provision of 1 or more antigens 95165
This service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.
760 services37 patients
Professional service for multiple injections of allergen 95117
The professional service for multiple injections of allergens involves administering small doses of specific allergens into your body. This is done to help your immune system become less sensitive to them, reducing your allergic reaction over time. It's a safe, effective way to manage allergies.
305 services53 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
71 services61 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
30 services28 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
29 services27 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
22 services20 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mercy Hospital St Louis

Acute Care Hospitals · Saint Louis, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260020
Location615 New Ballas RoadSaint Louis, MO 63141 · St. Louis County
Emergency services Birthing friendly

Mercy Hospital South

Acute Care Hospitals · Saint Louis, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260077
Location10010 Kennerly RoadSaint Louis, MO 63128 · St. Louis County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63141 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$128.28 typical visit price
range $55.65 – $169.38
Typical copayment $32.07 (range $13.91 – $42.34)
Most-billed visit code 99204
Established Patient
$69.50 typical visit price
range $17.76 – $137.92
Typical copayment $17.37 (range $4.44 – $34.48)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. PATRICIA ANN RICE APN
Nurse Practitioner (Family)
615 S NEW BALLAS RD
SAINT LOUIS, MO 63141
St. Louis County (314) 251-6339
MARY BETH WALKER FNP
Nurse Practitioner (Family)
615 S NEW BALLAS RD
SAINT LOUIS, MO 63141
St. Louis County (314) 251-6000
LOVEPREET SINGH RANDHAWA MD
Internal Medicine
615 S NEW BALLAS RD
SAINT LOUIS, MO 63141
St. Louis County (314) 251-6339
DR. CONNOR ROBERT REIS DO
Internal Medicine
615 S NEW BALLAS RD
SAINT LOUIS, MO 63141
St. Louis County (314) 251-6930
MR. SHEBY THOMAS AA-S
Anesthesiologist Assistant
615 S NEW BALLAS RD, DEPT OF ANESTHESIOLOGY
SAINT LOUIS, MO 63141
St. Louis County (636) 386-9224
JOSE L OLIVER SEGARRA
Dentist (General Practice)
615 S NEW BALLAS RD
SAINT LOUIS, MO 63141
St. Louis County (314) 251-6382
CAREN BIRKENKAMP PMHNP-BC
Nurse Practitioner (Psychiatric/Mental Health)
615 S NEW BALLAS RD
SAINT LOUIS, MO 63141
St. Louis County (314) 251-6000
ANAS M HASIC MD
Internal Medicine
615 S NEW BALLAS RD
SAINT LOUIS, MO 63141
St. Louis County (314) 509-5305

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Shirley Joo's NPI number?

The NPI number for Shirley Joo is 1144262825. It was assigned to this individual provider in the NPPES registry on June 10, 2006.

Where is Shirley Joo located?

Shirley Joo practices at 615 S New Ballas Rd, Saint Louis, MO 63141. The listed phone number is (314) 251-6382.

What is Shirley Joo's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Allergy & Immunology, with taxonomy code 207RA0201X.

Is Shirley Joo enrolled in Medicare?

Yes. Shirley Joo is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Shirley Joo accept?

Health plans from Medica list Shirley Joo as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Shirley Joo affiliated with any hospitals?

According to CMS data, Shirley Joo is affiliated with Mercy Hospital St Louis and Mercy Hospital South.

When was this NPI record last updated?

The NPPES record for Shirley Joo was last updated on June 19, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.