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

DR. TIFFANY BIASON DY MD
NPI 1528292174
Internal Medicine - Allergy & Immunology in Saint Louis, MO

Active since May 12, 2009PECOS EnrolledAccepts Medicare Assignment
79.29/100
CMS Quality Rating
5201 MID AMERICA PLZ, DIV IM ALLERGY AND IMMUNOLOGY, STE 2300, SAINT LOUIS, MO 63129(314) 996-8670(866) 362-4984 Get Directions Write a Review

NPPES record last updated: April 17, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 25, 2024, Apr 10, 2024, Nov 15, 2021 (3 updates tracked since 2021).

About Dr. Tiffany Biason Dy Md NPPES

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

DR. TIFFANY BIASON DY MD (NPI 1528292174) is an individual allergy & immunology provider in Saint Louis, Missouri, licensed in Missouri (2014003240) and active in the NPI registry since May 2009. She is enrolled in Medicare PECOS, is affiliated with Memorial Hospital, and is a graduate of Other (2009).

NPPES Registry Identity

NPI1528292174
Entity TypeIndividualFemale
Primary Taxonomy207RA0201X
Provider Legal NameDR. TIFFANY BIASON DYCredential: MD
Location Address5201 MID AMERICA PLZ, DIV IM ALLERGY AND IMMUNOLOGY, STE 2300Saint Louis, MO 63129-0002
Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 996-8670 · Fax (866) 362-4984
Phone(314) 996-8670
Fax(866) 362-4984
Sole ProprietorNo
Medical School CMSOtherGraduated 2009
Enumeration DateMay 12, 2009
Last NPPES UpdateApril 17, 20253 updates tracked since enumeration
✔ NPI 1528292174 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 · 2014003240
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.
5201 MID AMERICA PLZ, Saint Louis, MO 63129
Open in Google Maps ↗

Other Identifiers 1

Medicaid200013020MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cox HealthPlans.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. Tiffany Biason Dy 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 ID749403491
PECOS Enrollment IDI20140527001043
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 13

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.

Test for allergy using allergenic extract 95004
An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.
687 services14 patients
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.
275 services20 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.
137 services92 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.
81 services31 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.
39 services36 patients
Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
32 services14 patients

Hospital Affiliations CMS Care Compare 4

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

Memorial Hospital

Acute Care Hospitals · Belleville, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140185
Location4500 Memorial DriveBelleville, IL 62226 · St. Clair County
Emergency services Birthing friendly

Barnes Jewish Hospital

Acute Care Hospitals · Saint Louis, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number260032
LocationOne Barnes-Jewish Hospital PlazaSaint Louis, MO 63110 · St. Louis City County
Emergency services Birthing friendly

Barnes-Jewish West County Hospital

Acute Care Hospitals · Creve Coeur, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260162
Location12634 Olive BoulevardCreve Coeur, MO 63141 · St. Louis County
Emergency services

Christian Hospital Northeast

Acute Care Hospitals · Saint Louis, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260180
Location11133 Dunn RoadSaint Louis, MO 63136 · St. Louis County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63129 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

79.29/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality71.46
Promoting Interoperability100
Improvement Activities40
Cost59.51

Referred Medical Equipment & Supplies CMS DME claims 6

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Supplies for maintenance of non-insulin drug infusion catheter, per week (list drugs separately) A4221
DME-Other DME · category DE017N
3 suppliers26 claims104 services$17.88 avg. paid by Medicare
Injection, immune globulin (cuvitru), 100 mg J1555
Treatment-Injections and Infusions (nononcologic) · category RI008N
1 supplier13 claims6,760 services$11.69 avg. paid by Medicare
Injection, immune globulin (xembify), 100 mg J1558
Treatment-Injections and Infusions (nononcologic) · category RI008N
1 supplier12 claims8,640 services$10.73 avg. paid by Medicare
Injection, immune globulin, (gamunex-c/gammaked), non-lyophilized (e.g., liquid), 500 mg J1561
Treatment-Injections and Infusions (nononcologic) · category RI008N
1 supplier20 claims1,600 services$35.08 avg. paid by Medicare
Supplies for external non-insulin drug infusion pump, syringe type cartridge, sterile, each K0552
DME-Other DME · category DE000N
4 suppliers33 claims308 services$2.28 avg. paid by Medicare
Services, supplies and accessories used in the home under the medicare intravenous immune globulin (ivig) demonstration Q2052
Treatment-Chemotherapy · category RH012N
1 supplier18 claims18 services$307.44 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

DR. KOUSHIK KUMAR DAS MD
Internal Medicine (Gastroenterology)
5201 MID AMERICA PLZ, DIV IM GASTROENTEROLOGY, STE 2300
SAINT LOUIS, MO 63129
St. Louis County (314) 747-2066
DR. BRANDEN EDWARD YEE MD
Anesthesiology
5201 MID AMERICA PLZ, DEPT ANESTHESIOLOGY, STE 1300
SAINT LOUIS, MO 63129
St. Louis County (800) 862-9980
MR. RYAN J VALLO PA
Physician Assistant
5201 MID AMERICA PLZ, DEPT ORTHOPAEDIC SURG, STE 1500
SAINT LOUIS, MO 63129
St. Louis County (314) 514-3500
DR. OMAR HANI ELSAYED-ALI MD
Internal Medicine (Allergy & Immunology)
5201 MID AMERICA PLZ, DIV IM ALLERGY AND IMMUNOLOGY, STE 2300
SAINT LOUIS, MO 63129
St. Louis County (314) 996-8670
MS. SENADA FENELON AGNP
Nurse Practitioner (Gerontology)
5201 MID AMERICA PLZ, DIV IM RHEUMATOLOGY, STE 2300
SAINT LOUIS, MO 63129
St. Louis County (314) 286-2635
DR. ANGELA JOANN DEMETRULIAS OD
Optometrist
5201 MID AMERICA PLZ, DIV OPTHALMOLOGY, STE 2500
SAINT LOUIS, MO 63129
St. Louis County (314) 273-0020
DR. STEVEN A LAUTER MD
Internal Medicine (Rheumatology)
5201 MID AMERICA PLZ
SAINT LOUIS, MO 63129
St. Louis County (314) 514-3500
DR. OSLER JAY JUSTO GUZON MD
Internal Medicine (Cardiovascular Disease)
5201 MID AMERICA PLZ, DIV IM CARDIOLOGY, STE 2300
SAINT LOUIS, MO 63129
St. Louis County (314) 362-1291

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 Tiffany Dy's NPI number?

The NPI number for Tiffany Dy is 1528292174. It was assigned to this individual provider in the NPPES registry on May 12, 2009.

Where is Tiffany Dy located?

Tiffany Dy practices at 5201 Mid America Plz Div Im Allergy And Immunology, Ste 2300, Saint Louis, MO 63129. The listed phone number is (314) 996-8670.

What is Tiffany Dy's specialty?

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

Is Tiffany Dy enrolled in Medicare?

Yes. Tiffany Dy 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 Tiffany Dy accept?

Health plans from Cox HealthPlans list Tiffany Dy 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 Tiffany Dy affiliated with any hospitals?

According to CMS data, Tiffany Dy is affiliated with Memorial Hospital, Barnes Jewish Hospital, Barnes-Jewish West County Hospital and Christian Hospital Northeast.

When was this NPI record last updated?

The NPPES record for Tiffany Dy was last updated on April 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.