Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. MICHAEL DENNIS WEAVER DO
NPI 1336714963
Allergy & Immunology in Iowa City, IA

Q: What is Michael Weaver's NPI number?

The NPI number for Michael Weaver is 1336714963. It was assigned to this individual provider in the NPPES registry on May 25, 2021.

Q: What is Michael Weaver's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Michael Weaver was last updated on July 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 37 days 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 May 25, 2021PECOS EnrolledAccepts Medicare Assignment

200 HAWKINS DR, IOWA CITY, IA 52242(319) 356-1311(319) 356-8280 Get Directions Write a Review

NPPES record last updated: July 3, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 16, 2024, May 25, 2021 (2 updates tracked since 2021).

On this page

About Dr. Michael Dennis Weaver Do NPPES

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

DR. MICHAEL DENNIS WEAVER DO (NPI 1336714963) is an individual allergy & immunology provider in Iowa City, Iowa, licensed in Iowa (DO-55605) and active in the NPI registry since May 2021. He is enrolled in Medicare PECOS, is affiliated with Freeman Health System - Freeman West, and maintains a secondary practice location in Joplin.

NPPES Registry Identity

NPI1336714963

Entity TypeIndividualMale

Primary Taxonomy207K00000X

Provider Legal NameDR. MICHAEL DENNIS WEAVERCredential: DO

Location Address200 HAWKINS DRIowa City, IA 52242-1009

Mailing Address200 Hawkins Dr, Department Of Internal MedicineIowa City, IA 52242-1009 · (319) 356-1311 · Fax (319) 356-8280

Phone(319) 356-1311

Fax(319) 356-8280

Sole ProprietorNo

Medical School CMSKansas City University Of Med & Biosciences, College Of Osteo MedGraduated 2021

Enumeration DateMay 25, 2021

Last NPPES UpdateJuly 3, 20262 updates tracked since enumeration

NPPES CertifiedJuly 3, 2026

✔ NPI 1336714963 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians

Taxonomy Code207K00000X

License✔ Licensed in IA · DO-55605

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.

Also ListedHospitalistTaxonomy 208M00000X · License 2023043514 (MO)

200 HAWKINS DR, Iowa City, IA 52242

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Secondary Practice Location 1

Location 11102 W 32nd StJoplin, MO 64804-3503 · Phone (417) 347-6612 · Fax (417) 347-3775

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. Michael Dennis Weaver Do 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 ID3870037203

PECOS Enrollment IDI20240626004149

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

225 services102 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

62 services61 patients

Hospital discharge day management, 30 minutes or less 99238

Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.

53 services51 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

44 services25 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

18 services14 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

13 services13 patients

Hospital Affiliations CMS Care Compare 2

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

Freeman Health System - Freeman West

Acute Care Hospitals · Joplin, MO

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260137

Location1102 West 32nd StreetJoplin, MO 64804 · Jasper County

Emergency services Birthing friendly

Integris Miami Hospital

Acute Care Hospitals · Miami, OK

OwnershipVoluntary non-profit - Other

CMS Certification Number370004

Location200 Second Avenue SouthwestMiami, OK 74355 · Ottawa County

Emergency services Birthing friendly

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.

SANGIL LEE M.D.

Emergency Medicine

200 HAWKINS DR
IOWA CITY, IA 52242

Johnson County (319) 356-2233

RAMI G. EL ABIAD M.D.

Internal Medicine (Gastroenterology)

200 HAWKINS DR
IOWA CITY, IA 52242

Johnson County (319) 356-4901

GRERK SUTAMTEWAGUL MD

Internal Medicine (Hematology & Oncology)

200 HAWKINS DR, DEPT OF INTERNAL MEDICINE
IOWA CITY, IA 52242

Johnson County (319) 356-1616

DR. KALEB TANNER VEIT D.O.

Internal Medicine (Critical Care Medicine)

200 HAWKINS DR
IOWA CITY, IA 52242

Johnson County (319) 356-2320

OMAR JABER M.D

Chronic Disease Hospital

200 HAWKINS DR
IOWA CITY, IA 52242

Johnson County (319) 471-8958

JENNIFER MANCUSO MS, CGC

Genetic Counselor, MS

200 HAWKINS DR, 31663 PFP
IOWA CITY, IA 52242

Johnson County (319) 384-7983

ASHLEY KAISER M.D.

Obstetrics & Gynecology

200 HAWKINS DR, DEPT OF OBGYN
IOWA CITY, IA 52242

Johnson County (319) 356-2294

MRS. NANCY JANE MILLICE

Health Educator

200 HAWKINS DR, 0733 JPP
IOWA CITY, IA 52242

Johnson County (319) 356-3825

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 Michael Weaver's NPI number?

The NPI number for Michael Weaver is 1336714963. It was assigned to this individual provider in the NPPES registry on May 25, 2021.

Where is Michael Weaver located?

Michael Weaver practices at 200 Hawkins Dr, Iowa City, IA 52242. The listed phone number is (319) 356-1311.

What is Michael Weaver's specialty?

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

Is Michael Weaver enrolled in Medicare?

Yes. Michael Weaver 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 Michael Weaver accept?

Health plans from Medica list Michael Weaver 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 Michael Weaver affiliated with any hospitals?

According to CMS data, Michael Weaver is affiliated with Freeman Health System - Freeman West and Integris Miami Hospital.

When was this NPI record last updated?

The NPPES record for Michael Weaver was last updated on July 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 37 days 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.