HENNING GERKE MD
NPI 1588644207
Internal Medicine - Gastroenterology in Iowa City, IA

Q: What is Henning Gerke's NPI number?

The NPI number for Henning Gerke is 1588644207. It was assigned to this individual provider in the NPPES registry on January 19, 2006.

Q: What is Henning Gerke's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Henning Gerke was last updated on September 2, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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 January 19, 2006PECOS EnrolledAccepts Medicare Assignment

200 HAWKINS DR, IOWA CITY, IA 52242(319) 356-4901(319) 384-8559 Get Directions Write a Review

NPPES record last updated: September 2, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Henning Gerke Md NPPES

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

HENNING GERKE MD (NPI 1588644207) is an individual gastroenterology provider in Iowa City, Iowa, licensed in Iowa (SP161) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Genesis Medical Center-davenport, and is a graduate of Other (1996).

NPPES Registry Identity

NPI1588644207

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameHENNING GERKECredential: MD

Location Address200 HAWKINS DRIowa City, IA 52242-1009

Mailing Address200 Hawkins DrIowa City, IA 52242-1009 · (319) 356-4901 · Fax (319) 384-8559

Phone(319) 356-4901

Fax(319) 384-8559

Sole ProprietorNo

Medical School CMSOtherGraduated 1996

Enumeration DateJanuary 19, 2006

Last NPPES UpdateSeptember 2, 2021

NPPES CertifiedSeptember 2, 2021

✔ NPI 1588644207 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in IA · SP161

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Also ListedInternal MedicineTaxonomy 207R00000X · License SP161 (IA)

200 HAWKINS DR, Iowa City, IA 52242

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Other Identifiers 2

Medicaid0439877IA

Other36651IA · Wellmark Bcbs

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan, Ambetter Health and more.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

Henning Gerke 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 ID5395716849

PECOS Enrollment IDI20040805001356

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 Reassignments

Medicare enrollment records show Henning Gerke reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Genesis Health System

52 mi

Surgery

1227 E RUSHOLME ST
Davenport, IA 52803

Reassigned Medicare billing, Iowa enrollment
358 clinicians in this Medicare group

NPI 1528616901 (563) 421-3408

Mercy Specialty Clinic

53 mi

Family Medicine

1021 11TH ST
De Witt, IA 52742

Reassigned Medicare billing, Iowa enrollment
183 clinicians in this Medicare group

NPI 1235793829 (563) 659-9294

Medical Associates Clinic P C

71 mi

Multi-Specialty

1500 ASSOCIATES DR
Dubuque, IA 52002

Reassigned Medicare billing, Iowa enrollment
272 clinicians in this Medicare group

NPI 1457300790 (563) 584-4100

Mercy Medical Center-Dubuque

73 mi

General Acute Care Hospital

250 MERCY DR
Dubuque, IA 52001

Reassigned Medicare billing, Iowa enrollment
94 clinicians in this Medicare group

NPI 1659348506 (563) 589-8000

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 16

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.

Insertion of guide wire with dilation of esophagus using a flexible endoscope 43248

This is a procedure where a thin tube, called an endoscope, is gently passed through your mouth into your esophagus. A guide wire is then inserted to help widen any narrow areas. This helps improve swallowing and reduce discomfort.

124 services55 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

74 services74 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

62 services60 patients

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

59 services57 patients

Ultrasound guided needle aspiration or biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43242

This procedure involves using an ultrasound to guide a needle to specific areas in the esophagus, stomach, or upper small bowel. A flexible endoscope is used to reach these areas. The needle collects a small sample for testing.

37 services36 patients

Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare 43251

This procedure involves the use of a thin, flexible instrument called an endoscope to visualize and remove abnormal growths, known as polyps, from the esophagus, stomach, or upper small bowel. A tool called a mechanical snare is used to safely cut and remove these growths.

32 services31 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.

26 services25 patients

Removal of tissue lining of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43254

This procedure involves the use of a flexible tube with a light and camera, called an endoscope, to remove tissue from your esophagus, stomach, or upper small bowel. It's typically done to diagnose or treat certain conditions, and is a safe, minimally invasive option.

24 services18 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.

24 services24 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.

24 services22 patients

Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43259

This procedure involves a flexible tube with a camera, called an endoscope, inserted through your mouth to examine your esophagus, stomach, and upper small bowel. An ultrasound device on the endoscope helps get detailed images. It's safe and helps diagnose various conditions.

22 services22 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.

17 services17 patients

Diagnostic exam of large bowel using a flexible endoscope 45378

This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.

15 services15 patients

Colorectal cancer screening; colonoscopy on individual at high risk G0105

Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.

13 services13 patients

Insertion of stomach tube using a flexible endoscope 43246

This procedure involves the use of a flexible endoscope, a thin tube with a light and camera, to insert a stomach tube. It helps doctors view and access your stomach without surgery. It's typically performed under sedation to ensure comfort.

12 services12 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

11 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Genesis Medical Center-Davenport

Acute Care Hospitals · Davenport, IA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number160033

Location1227 East Rusholme StreetDavenport, IA 52803 · Scott County

Emergency services Birthing friendly

Mercyone Clinton Medical Center

Acute Care Hospitals · Clinton, IA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number160080

Location1410 North 4th StreetClinton, IA 52732 · Clinton County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 52242 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.

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 Henning Gerke's NPI number?

The NPI number for Henning Gerke is 1588644207. It was assigned to this individual provider in the NPPES registry on January 19, 2006.

Where is Henning Gerke located?

Henning Gerke practices at 200 Hawkins Dr, Iowa City, IA 52242. The listed phone number is (319) 356-4901.

What is Henning Gerke's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Henning Gerke enrolled in Medicare?

Yes. Henning Gerke 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 organizations bill Medicare for Henning Gerke's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Henning Gerke reassigns Medicare benefits to 4 organizations: Genesis Health System (Davenport, IA), Mercy Specialty Clinic (De Witt, IA), Medical Associates Clinic P C (Dubuque, IA) and Mercy Medical Center-Dubuque (Dubuque, IA). Each 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 Henning Gerke's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Henning Gerke accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and Oscar Health and 2 other insurers list Henning Gerke 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 Henning Gerke affiliated with any hospitals?

According to CMS data, Henning Gerke is affiliated with Genesis Medical Center-Davenport and Mercyone Clinton Medical Center.

When was this NPI record last updated?

The NPPES record for Henning Gerke was last updated on September 2, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.