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TOMOHIRO TANAKA M.D.
NPI 1184098667
Internal Medicine - Hepatology in Iowa City, IA

Active since November 19, 2015PECOS EnrolledAccepts Medicare Assignment
200 HAWKINS DR, DEPT OF INTERNAL MEDICINE, IOWA CITY, IA 52242(319) 356-4901(319) 384-8559 Get Directions Write a Review

NPPES record last updated: September 3, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Nov 17, 2020, Nov 19, 2015 (2 updates tracked since 2015).

About Tomohiro Tanaka M.d. NPPES

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

TOMOHIRO TANAKA M.D. (NPI 1184098667) is an individual hepatology provider in Iowa City, Iowa, licensed in Iowa (SP-217) and active in the NPI registry since November 2015. He is enrolled in Medicare PECOS, is affiliated with Southeast Iowa Regional Medical Center, and is a graduate of Other (2005).

NPPES Registry Identity

NPI1184098667
Entity TypeIndividualMale
Primary Taxonomy207RI0008X
Provider Legal NameTOMOHIRO TANAKACredential: M.D.
Location Address200 HAWKINS DR, DEPT OF INTERNAL MEDICINEIowa City, IA 52242-1009
Mailing Address200 Hawkins Dr, Dept Of Internal MedicineIowa City, IA 52242-1009 · (319) 356-4901 · Fax (319) 384-8559
Phone(319) 356-4901
Fax(319) 384-8559
Sole ProprietorNo
Medical School CMSOtherGraduated 2005
Enumeration DateNovember 19, 2015
Last NPPES UpdateSeptember 3, 20212 updates tracked since enumeration
NPPES CertifiedSeptember 3, 2021
✔ NPI 1184098667 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · HepatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RI0008X
License✔ Licensed in IA · SP-217
Definition
The discipline of Hepatology encompasses the structure, function, and diseases of the liver and biliary tract. The American Board of Internal Medicine considers Hepatology part of the subspecialty of gastroenterology. Physicians who identify themselves as Hepatologists usually, but not always, have been trained in gastrointestinal programs.
Also ListedInternal Medicine · GastroenterologyTaxonomy 207RG0100X · License SP-217 (IA)
Also ListedInternal Medicine · Transplant HepatologyTaxonomy 207RT0003X · License SP-217 (IA)
200 HAWKINS DR, Iowa City, IA 52242
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Insurance Company, Sanford Health Plan, Wellmark Health Plan of Iowa, Inc..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

Tomohiro Tanaka 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 ID5395046353
PECOS Enrollment IDI20151216000540
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 Tomohiro Tanaka reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

State University Of Iowa
Same address
Dentist
200 HAWKINS DRIVE, 51300 POMERANTZ FAMILY PAVILION
Iowa City, IA 52242
  • Reassigned Medicare billing, Iowa enrollment
  • 2,190 clinicians in this Medicare group
NPI 1114905387 (319) 356-2743

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 5

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.

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.
52 services43 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.
38 services38 patients
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.
37 services16 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.
11 services11 patients
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito G0500
Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.
11 services11 patients

Hospital Affiliations CMS Care Compare 5

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

Southeast Iowa Regional Medical Center

Acute Care Hospitals · West Burlington, IA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number160057
Location1221 South Gear AvenueWest Burlington, IA 52655 · Des Moines County
Emergency services Birthing friendly

University Of Iowa Hospital & Clinics

Acute Care Hospitals · Iowa City, IA
3/5 CMS rating
OwnershipGovernment - State
CMS Certification Number160058
Location200 Hawkins DriveIowa City, IA 52242 · Johnson County
Emergency services Birthing friendly

Mercy Medical Center - Cedar Rapids

Acute Care Hospitals · Cedar Rapids, IA
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number160079
Location701 10th Street SECedar Rapids, IA 52403 · Linn 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

Regional Medical Center

Critical Access Hospitals · Manchester, IA
OwnershipGovernment - Local
CMS Certification Number161343
Location709 W Main StreetManchester, IA 52057 · Delaware County
Emergency services

Referred Medical Equipment & Supplies CMS DME claims 9

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Cyclosporine, oral, 100 mg J7502
Treatment-Treatment - Miscellaneous · category RX029N
3 suppliers23 claims1,080 services$1.67 avg. paid by Medicare
Tacrolimus, immediate release, oral, 1 mg J7507
Treatment-Treatment - Miscellaneous · category RX029N
13 suppliers167 claims15,422 services$0.30 avg. paid by Medicare
Prednisone, immediate release or delayed release, oral, 1 mg J7512
Treatment-Treatment - Miscellaneous · category RX029N
2 suppliers13 claims1,350 services$0.01 avg. paid by Medicare
Cyclosporine, oral, 25 mg J7515
Treatment-Treatment - Miscellaneous · category RX029N
2 suppliers14 claims1,380 services$0.61 avg. paid by Medicare
Mycophenolate mofetil, oral, 250 mg J7517
Treatment-Treatment - Miscellaneous · category RX029N
10 suppliers98 claims12,192 services$0.19 avg. paid by Medicare
Sirolimus, oral, 1 mg J7520
Treatment-Treatment - Miscellaneous · category RX029N
1 supplier26 claims1,470 services$2.63 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.

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 Tomohiro Tanaka's NPI number?

The NPI number for Tomohiro Tanaka is 1184098667. It was assigned to this individual provider in the NPPES registry on November 19, 2015.

Where is Tomohiro Tanaka located?

Tomohiro Tanaka practices at 200 Hawkins Dr Dept Of Internal Medicine, Iowa City, IA 52242. The listed phone number is (319) 356-4901.

What is Tomohiro Tanaka's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hepatology, with taxonomy code 207RI0008X.

Is Tomohiro Tanaka enrolled in Medicare?

Yes. Tomohiro Tanaka 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 Tomohiro Tanaka's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tomohiro Tanaka reassigns Medicare benefits to State University Of Iowa (Iowa City, IA). 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 Tomohiro Tanaka's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Tomohiro Tanaka accept?

Health plans from Oscar Insurance Company, Sanford Health Plan and Wellmark Health Plan of Iowa, Inc. list Tomohiro Tanaka 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 Tomohiro Tanaka affiliated with any hospitals?

According to CMS data, Tomohiro Tanaka is affiliated with Southeast Iowa Regional Medical Center, University Of Iowa Hospital & Clinics, Mercy Medical Center - Cedar Rapids, Mercyone Des Moines Medical Center and Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Tomohiro Tanaka was last updated on September 3, 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.