DR. JENNIFER MARIE MONROY MD
NPI 1669633889
Internal Medicine - Allergy & Immunology in Saint Louis, MO

Q: What is Jennifer Monroy's NPI number?

The NPI number for Jennifer Monroy is 1669633889. It was assigned to this individual provider in the NPPES registry on June 19, 2008.

Q: What is Jennifer Monroy's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Jennifer Monroy 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 18 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.

Active since June 19, 2008PECOS 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: October 25, 2026.

Record update history: Apr 25, 2024, Apr 10, 2024, Jan 25, 2022 and 1 more (4 updates tracked since 2021).

On this page

About Dr. Jennifer Marie Monroy Md NPPES

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

DR. JENNIFER MARIE MONROY MD (NPI 1669633889) is an individual allergy & immunology provider in Saint Louis, Missouri, licensed in Missouri (2013018931) and active in the NPI registry since June 2008. She is enrolled in Medicare PECOS, is affiliated with Barnes Jewish Hospital, and is a graduate of Other (2008).

NPPES Registry Identity

NPI1669633889

Entity TypeIndividualFemale

Primary Taxonomy207RA0201X

Provider Legal NameDR. JENNIFER MARIE MONROYCredential: 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 2008

Enumeration DateJune 19, 2008

Last NPPES UpdateApril 17, 20254 updates tracked since enumeration

✔ NPI 1669633889 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Allergy & ImmunologyAllopathic & Osteopathic Physicians

Taxonomy Code207RA0201X

License✔ Licensed in MO · 2013018931

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.

Also ListedAllergy & ImmunologyTaxonomy 207K00000X · License 2013018931 (MO)

Also ListedInternal MedicineTaxonomy 207R00000X · License 2013018931 (MO)

5201 MID AMERICA PLZ, Saint Louis, MO 63129

Open in Google Maps ↗

Other Identifiers 1

Medicaid200005970MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cox HealthPlans, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Jennifer Marie Monroy 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 ID5193968741

PECOS Enrollment IDI20130829000204

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.

Medicare Billing Reassignment

Medicare enrollment records show Jennifer Monroy reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Washington University

12 mi

Multi-Specialty

660 S EUCLID AVE
Saint Louis, MO 63110

Reassigned Medicare billing, Missouri enrollment
1,133 clinicians in this Medicare group

NPI 1992746903 (314) 747-5192

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 26

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.

Injection, vedolizumab, intravenous, 1 mg J3380

Vedolizumab is a medication given via injection. It's used to treat certain bowel conditions (such as Crohn's disease, ulcerative colitis) by reducing inflammation. It works by blocking a certain protein that causes this inflammation.

9,600 services12 patients

Injection, romosozumab-aqqg, 1 mg J3111

Romosozumab-aqqg is a medication given by injection to treat osteoporosis in patients at high risk for fractures. It works by increasing bone mass and strength, reducing the risk of fractures.

7,980 services25 patients

Injection, immune globulin, (gamunex-c/gammaked), non-lyophilized (e.g., liquid), 500 mg J1561

This is an injection of immune globulin, specifically Gamunex-C or Gammaked. It's a liquid form, not freeze-dried. Immune globulin is a blood product that helps your immune system to fight infections. It's given in a dose of 500 mg.

6,260 services27 patients

Injection, golimumab, 1 mg, for intravenous use J1602

Golimumab is a medication given through an IV (a small tube in your vein). It helps to reduce inflammation and pain by blocking a protein in your body that causes inflammation. It's often used to treat conditions like rheumatoid arthritis, psoriatic arthritis, and ankylosing spondylitis.

5,650 services14 patients

Injection, denosumab, 1 mg J0897

Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.

5,520 services87 patients

Injection, abatacept, 10 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered) J0129

Abatacept is a medication administered via injection under a doctor's supervision. It's used to treat conditions like rheumatoid arthritis by moderating the immune system. This code applies when the doctor administers the drug, not for self-administration.

3,250 services12 patients

Injection, infliximab, excludes biosimilar, 10 mg J1745

Infliximab is a medication given via injection to treat certain autoimmune conditions. It works by blocking the action of a substance in your body that causes inflammation. Each dose is based on your medical condition and response to treatment.

2,850 services15 patients

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.

724 services16 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.

340 services18 patients

Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 96365

This is a procedure where a medical professional inserts a small tube into your vein to deliver medication, nutrients, or fluids directly into your bloodstream. This can be for treatment, prevention, or diagnosis. The process typically takes less than an hour.

301 services111 patients

Test for allergy using combination of methods with drug or biological 95018

An allergy test with a drug or biological involves multiple methods. Skin tests may be performed where small amounts of allergens are introduced to the skin. Blood tests measure your immune system's response to specific allergens. These tests help identify what substances you're allergic to.

252 services29 patients

Infusion into a vein for therapy, prevention, or diagnosis, each additional hour 96366

This procedure involves delivering medication, fluids, or nutrients directly into your vein. This is done to treat, prevent, or diagnose various conditions. Each additional hour refers to the extended time you may need to receive these substances for optimal results.

248 services49 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.

227 services135 patients

Test for allergy using allergenic extract injected into skin 95024

An allergy skin test involves injecting a small amount of allergenic extract into your skin. This test helps determine if you're allergic to specific substances. If allergic, a small red bump appears at the test site. It's safe and quick.

195 services14 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.

170 services120 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.

154 services48 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.

72 services61 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

50 services50 patients

Injection of additional new drug or substance into vein 96375

This procedure involves introducing a new medication or substance into your bloodstream via a vein. It's typically done using a small needle. The substance can help treat various conditions or assist in diagnostic procedures. It's generally safe and monitored by professionals.

46 services15 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

39 services28 patients

Test for allergy using ingested items, initial 2 hours 95076

This is a test to identify food allergies. You'll consume specific foods under medical supervision. For the initial 2 hours, reactions like skin rashes, breathing issues, or digestive problems are monitored. It helps pinpoint what foods may be causing allergic reactions.

27 services26 patients

Test to determine lung volumes using sensors 94726

This test, called spirometry, measures lung capacity using sensors. You breathe into a mouthpiece attached to a device that records the amount and rate of air you inhale and exhale. It helps diagnose and monitor lung conditions.

21 services21 patients

Test to examine how well the lungs exchange gases 94729

This is a test called a pulmonary function test, which helps understand the efficiency of your lungs. It measures how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood.

20 services20 patients

Test to measure expiratory airflow and volume changes before and after medication administration 94060

This procedure measures how air flows in and out of your lungs. It's done before and after medication to see if the treatment improves your breathing. It's a simple, non-invasive test that involves breathing into a device called a spirometer.

14 services14 patients

Test to measure expiratory airflow and volume 94010

This test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.

13 services13 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

11 services11 patients

Hospital Affiliations CMS Care Compare 3

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

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

Missouri Baptist Medical Center

Acute Care Hospitals · Town And Country, MO

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260108

Location3015 N Ballas RdTown And Country, MO 63131 · St. Louis 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

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

Quality

71.46

Promoting Interoperability

100

Improvement Activities

Cost

59.51

Referred Medical Equipment & Supplies CMS DME claims 13

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

5 suppliers73 claims227 services$18.12 avg. paid by Medicare

Infusion supplies for external drug infusion pump, per cassette or bag (list drugs separately) A4222

DME-Medical/Surgical Supplies · category DA000N

1 supplier12 claims14 services$32.84 avg. paid by Medicare

High frequency chest wall oscillation system, with full anterior and/or posterior thoracic region receiving simultaneous external oscillation, includes all accessories and supplies, each E0483

DME-Other DME · category DE000N

2 suppliers20 claims20 services$809.02 avg. paid by Medicare

Ambulatory infusion pump, mechanical, reusable, for infusion 8 hours or greater E0779

DME-Other DME · category DE000N

2 suppliers14 claims14 services$11.98 avg. paid by Medicare

Injection, immune globulin (cuvitru), 100 mg J1555

Treatment-Injections and Infusions (nononcologic) · category RI008N

3 suppliers24 claims7,480 services$11.72 avg. paid by Medicare

Injection, immune globulin, (gammaplex), intravenous, non-lyophilized (e.g., liquid), 500 mg J1557

Treatment-Injections and Infusions (nononcologic) · category RI008N

2 suppliers12 claims840 services$39.68 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

DR. NICOLE MARIE DUCHARME DO

Internal Medicine (Endocrinology, Diabetes & Metabolism)

5201 MID AMERICA PLZ, DIV IM ENDOCRINOLOGY
SAINT LOUIS, MO 63129

St. Louis County (314) 362-3500

MS. KAREN KAY MOORE FNP

Nurse Practitioner (Family)

5201 MID AMERICA PLZ, DIV IM CARDIOLOGY, STE 2300
SAINT LOUIS, MO 63129

St. Louis County (314) 362-1291

MS. LINDA TRINH BOUCHER FNP

Nurse Practitioner (Family)

5201 MID AMERICA PLZ, DIV IM CARDIOLOGY, STE 2300
SAINT LOUIS, MO 63129

St. Louis County (314) 362-1291

DR. SUDHIR K JAIN MD

Internal Medicine (Cardiovascular Disease)

5201 MID AMERICA PLZ, DIV IM CARDIOLOGY, STE 2300
SAINT LOUIS, MO 63129

St. Louis County (314) 362-1291

MS. HELEN M WIJEWEERA ANP

Nurse Practitioner (Adult Health)

5201 MID AMERICA PLZ, DIV IM ENDOCRINOLOGY
SAINT LOUIS, MO 63129

St. Louis County (314) 362-3500

DR. TIFFANY BIASON DY 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

DR. RICHARD H WIEDER MD

Ophthalmology

5201 MID AMERICA PLZ, DEPT OPTHALMOLOGY, STE 2500
SAINT LOUIS, MO 63129

St. Louis County (314) 273-0020

DR. KATHLEEN MARY LOWE MD

Internal Medicine (Endocrinology, Diabetes & Metabolism)

5201 MID AMERICA PLZ, DIV IM BONE AND MINERAL, STE 2300
SAINT LOUIS, MO 63129

St. Louis County (314) 454-7775

WASHINGTON UNIVERSITY

Durable Medical Equipment & Medical Supplies

5201 MID AMERICA PLZ, SUITE 1500
SAINT LOUIS, MO 63129

St. Louis County (314) 286-2900

MS. CHRISTINA M LYERLA CRNA

Nurse Anesthetist, Certified Registered

5201 MID AMERICA PLZ, DEPT ANESTHESIOLOGY, STE 1300
SAINT LOUIS, MO 63129

St. Louis County (800) 862-9980

DR. CECILIA SUNGMIN LEE MD

Ophthalmology (Retina Specialist)

5201 MID AMERICA PLZ, DEPT OPTHALMOLOGY, STE 2500
SAINT LOUIS, MO 63129

St. Louis County (314) 273-0020

PROREHAB PC

Physical Therapist

5201 MID AMERICA PLZ, SUITE 2600
SAINT LOUIS, MO 63129

St. Louis County (314) 487-7000

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 Jennifer Monroy's NPI number?

The NPI number for Jennifer Monroy is 1669633889. It was assigned to this individual provider in the NPPES registry on June 19, 2008.

Where is Jennifer Monroy located?

Jennifer Monroy 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 Jennifer Monroy's specialty?

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

Is Jennifer Monroy enrolled in Medicare?

Yes. Jennifer Monroy 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.

Which organization bills Medicare for Jennifer Monroy's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jennifer Monroy reassigns Medicare benefits to Washington University (Saint Louis, MO). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Jennifer Monroy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Jennifer Monroy accept?

Health plans from Cox HealthPlans and UnitedHealthcare list Jennifer Monroy 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 Jennifer Monroy affiliated with any hospitals?

According to CMS data, Jennifer Monroy is affiliated with Barnes Jewish Hospital, Missouri Baptist Medical Center and Barnes-Jewish West County Hospital.

When was this NPI record last updated?

The NPPES record for Jennifer Monroy 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 18 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.