HOLLY CONWAY BROWN M.D.
NPI 1851382980
Allergy & Immunology in Cedar Rapids, IA

Active since October 28, 2005PECOS EnrolledAccepts Medicare Assignment
3500 MOUNT VERNON RD SE, CEDAR RAPIDS, IA 52403(319) 366-6249(319) 366-6244 Get Directions Write a Review

NPPES record last updated: October 30, 2023. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Oct 30, 2023, Oct 27, 2023, May 3, 2022 and 1 more (4 updates tracked since 2015).

About Holly Conway Brown M.d. NPPES

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

HOLLY CONWAY BROWN M.D. (NPI 1851382980) is an individual allergy & immunology provider in Cedar Rapids, Iowa, licensed in Iowa (MD-33765) and active in the NPI registry since October 2005. She is enrolled in Medicare PECOS, is affiliated with St Lukes Hospital, and is a graduate of University Of Iowa, Rj & L Carver College Of Medicine (1998).

NPPES Registry Identity

NPI1851382980
Entity TypeIndividualFemale
Primary Taxonomy207K00000X
Provider Legal NameHOLLY CONWAY BROWNCredential: M.D.
Location Address3500 MOUNT VERNON RD SECedar Rapids, IA 52403-3864
Mailing AddressPo Box 603725Charlotte, NC 28260-3725 · (828) 575-2625 · Fax (828) 350-2174
Fax(319) 366-6244
Sole ProprietorNo
Medical School CMSUniversity Of Iowa, Rj & L Carver College Of MedicineGraduated 1998
Enumeration DateOctober 28, 2005
Last NPPES UpdateOctober 30, 20234 updates tracked since enumeration
NPPES CertifiedOctober 30, 2023
NPI 1851382980 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207K00000X
Licenses Licensed in IA · MD-33765 Licensed in IA · 33765
Definition

An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.

3500 MOUNT VERNON RD SE, Cedar Rapids, IA 52403

Other Identifiers 2

OtherI9466IA · Medicare Ptan
Medicaid1851382980IA

Accepted 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

Holly Conway Brown M.d. 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 ID1153339452
PECOS Enrollment IDI20060328000781
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 8

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.
2,840 services53 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.
972 services62 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.
567 services44 patients
Professional service for single injection of allergen 95115
A single allergen injection is a procedure where a small amount of a specific allergen is injected into your body. This is done to test your body's reaction to the allergen or to help your immune system become less sensitive to it, reducing allergic symptoms.
288 services19 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.
143 services15 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.
121 services115 patients

Hospital Affiliations CMS Care Compare

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

St Lukes Hospital

Acute Care Hospitals · Cedar Rapids, IA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number160045
Location1026 A Ave NECedar Rapids, IA 52402 · Linn County
Emergency services Birthing friendly

Other Providers at the Same Location NPPES 2

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

Physician Assistant (Medical)
3500 MOUNT VERNON RD SE
CEDAR RAPIDS, IA 52403
Allergy & Immunology
3500 MOUNT VERNON RD SE
CEDAR RAPIDS, IA 52403

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 Holly Brown's NPI number?

The NPI number for Holly Brown is 1851382980. It was assigned to this individual provider in the NPPES registry on October 28, 2005.

Where is Holly Brown located?

Holly Brown practices at 3500 Mount Vernon Rd SE, Cedar Rapids, IA 52403. The listed phone number is (319) 366-6249.

What is Holly Brown's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Holly Brown enrolled in Medicare?

Yes. Holly Brown 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 Holly Brown accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Home State Health, Ambetter from NH Healthy Families and Ambetter from Sunflower Health Plan and 1 other insurer list Holly Brown 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 Holly Brown affiliated with any hospitals?

According to CMS data, Holly Brown is affiliated with St Lukes Hospital.

When was this NPI record last updated?

The NPPES record for Holly Brown was last updated on October 30, 2023. NPI Profile syncs with the weekly NPPES data releases published by CMS.