CHRISTOPHER J RONKAR MD
NPI 1992810956
Internal Medicine - Rheumatology in Urbandale, IA

Active since August 20, 2006PECOS EnrolledAccepts Medicare Assignment
8421 PLUM DR, URBANDALE, IA 50322(515) 270-7222(515) 270-7202 Get Directions Write a Review

NPPES record last updated: May 13, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: May 13, 2025, Nov 23, 2021, Aug 5, 2020 (3 updates tracked since 2020).

About Christopher J Ronkar Md NPPES

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

CHRISTOPHER J RONKAR MD (NPI 1992810956) is an individual rheumatology provider in Urbandale, Iowa, licensed in Iowa (32739) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Mercyone North Iowa Medical Center, and is a graduate of Other (1996).

NPPES Registry Identity

NPI1992810956
Entity TypeIndividualMale
Primary Taxonomy207RR0500X
Provider Legal NameCHRISTOPHER J RONKARCredential: MD
Location Address8421 PLUM DRUrbandale, IA 50322-7356
Mailing Address8421 Plum DrUrbandale, IA 50322-7356 · (515) 270-7222 · Fax (515) 270-7202
Fax(515) 270-7202
Sole ProprietorNo
Medical School CMSOtherGraduated 1996
Enumeration DateAugust 20, 2006
Last NPPES UpdateMay 13, 20253 updates tracked since enumeration
NPPES CertifiedMay 13, 2025
NPI 1992810956 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License Licensed in IA · 32739
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
8421 PLUM DR, Urbandale, IA 50322

Other Identifiers 1

Medicaid0282178IA

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

Christopher J Ronkar 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 ID7618019035
PECOS Enrollment IDI20100123000247
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 50

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, 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.
24,180 services231 patients
Injection, certolizumab pegol, 1 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) J0717
Certolizumab pegol is a medication injected under a doctor's supervision. It's used to treat certain inflammatory conditions like rheumatoid arthritis. The injection helps reduce symptoms like pain and swelling. Note that this drug isn't for self-administration.
18,800 services13 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.
11,970 services23 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.
9,375 services19 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.
3,540 services18 patients
Injection, rituximab, 10 mg J9312
Rituximab is a medication given via injection. It's used to treat certain types of cancer and autoimmune diseases. The 10 mg dosage refers to the amount of the drug in the injection. It works by targeting and destroying specific cells, helping your body's immune system.
2,900 services12 patients

Hospital Affiliations CMS Care Compare 5

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

Mercyone North Iowa Medical Center

Acute Care Hospitals · Mason City, IA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number160064
Location1000 Fourth Street SWMason City, IA 50401 · Cerro Gordo County
Emergency services Birthing friendly

Mercyone Des Moines Medical Center

Acute Care Hospitals · Des Moines, IA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number160083
Location1111 6th AveDes Moines, IA 50314 · Polk County
Emergency services Birthing friendly

Grinnell Regional Medical Center

Acute Care Hospitals · Grinnell, IA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number160147
Location210 Fourth AvenueGrinnell, IA 50112 · Poweshiek County
Emergency services Birthing friendly

Madison County Health Care System

Critical Access Hospitals · Winterset, IA
OwnershipGovernment - Local
CMS Certification Number161326
Location300 West Hutchings StreetWinterset, IA 50273 · Madison County
Emergency services

Mahaska Health Partnership

Critical Access Hospitals · Oskaloosa, IA
4/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number161379
Location1229 C Avenue EastOskaloosa, IA 52577 · Mahaska County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 50322 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
$122.23 typical visit price
range $52.96 – $161.40
Typical copayment $30.55 (range $13.24 – $40.35)
Most-billed visit code 99204
Established Patient
$94.05 typical visit price
range $16.91 – $131.98
Typical copayment $23.51 (range $4.22 – $32.99)
Most-billed visit code 99214
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.

Physician Assistant
8421 PLUM DR
URBANDALE, IA 50322
Internal Medicine (Rheumatology)
8421 PLUM DR
URBANDALE, IA 50322
Internal Medicine (Rheumatology)
8421 PLUM DR
URBANDALE, IA 50322
Internal Medicine (Rheumatology)
8421 PLUM DR
URBANDALE, IA 50322
Internal Medicine (Rheumatology)
8421 PLUM DR
URBANDALE, IA 50322
Physician Assistant (Medical)
8421 PLUM DR
URBANDALE, IA 50322
Internal Medicine (Rheumatology)
8421 PLUM DR
URBANDALE, IA 50322
Internal Medicine (Rheumatology)
8421 PLUM DR
URBANDALE, IA 50322

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 Christopher Ronkar's NPI number?

The NPI number for Christopher Ronkar is 1992810956. It was assigned to this individual provider in the NPPES registry on August 20, 2006.

Where is Christopher Ronkar located?

Christopher Ronkar practices at 8421 Plum Dr, Urbandale, IA 50322. The listed phone number is (515) 270-7222.

What is Christopher Ronkar's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Christopher Ronkar enrolled in Medicare?

Yes. Christopher Ronkar 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 Christopher Ronkar 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 2 other insurers list Christopher Ronkar 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 Christopher Ronkar affiliated with any hospitals?

According to CMS data, Christopher Ronkar is affiliated with Mercyone North Iowa Medical Center, Mercyone Des Moines Medical Center, Grinnell Regional Medical Center, Madison County Health Care System and Mahaska Health Partnership.

When was this NPI record last updated?

The NPPES record for Christopher Ronkar was last updated on May 13, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.