DR. IAN GRIMES M.D.
NPI 1275737165
Internal Medicine - Gastroenterology in Madison, WI

Active since June 13, 2007PECOS EnrolledAccepts Medicare Assignment
750 UNIVERSITY ROW, MADISON, WI 53705(608) 890-5000 Get Directions Write a Review

NPPES record last updated: January 27, 2021. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About Dr. Ian Grimes M.d. NPPES

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

DR. IAN GRIMES M.D. (NPI 1275737165) is an individual gastroenterology provider in Madison, Wisconsin, licensed in Wisconsin (52636) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS, is affiliated with Unitypoint Health - Meriter, and is a graduate of Southern Illinois University School Of Medicine (2007).

NPPES Registry Identity

NPI1275737165
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. IAN GRIMESCredential: M.D.
Location Address750 UNIVERSITY ROWMadison, WI 53705-1311
Mailing Address7974 Uw Health CtMiddleton, WI 53562-5531
Sole ProprietorNo
Medical School CMSSouthern Illinois University School Of MedicineGraduated 2007
Enumeration DateJune 13, 2007
Last NPPES UpdateJanuary 27, 2021
NPPES CertifiedJanuary 27, 2021
NPI 1275737165 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License Licensed in WI · 52636
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.

750 UNIVERSITY ROW, Madison, WI 53705

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

Dr. Ian Grimes 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 ID7618159823
PECOS Enrollment IDI20110309000726
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 9

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.

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.
90 services89 patients
Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
88 services88 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.
32 services32 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
32 services30 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.
32 services26 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.
13 services12 patients

Hospital Affiliations CMS Care Compare 2

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

Unitypoint Health - Meriter

Acute Care Hospitals · Madison, WI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520089
Location202 S Park StMadison, WI 53715 · Dane County
Emergency services Birthing friendly

University Of Wi Hospitals & Clinics Authority

Acute Care Hospitals · Madison, WI
4/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number520098
Location600 Highland AvenueMadison, WI 53792 · Dane County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53705 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
$123.69 typical visit price
range $53.90 – $163.24
Typical copayment $30.92 (range $13.47 – $40.81)
Most-billed visit code 99204
Established Patient
$95.41 typical visit price
range $17.40 – $133.76
Typical copayment $23.85 (range $4.35 – $33.44)
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.

Dietitian, Registered
750 UNIVERSITY ROW, ROOM 353
MADISON, WI 53705
Physician Assistant (Medical)
750 UNIVERSITY ROW
MADISON, WI 53705
Speech-Language Pathologist
750 UNIVERSITY ROW
MADISON, WI 53705
Dietitian, Registered
750 UNIVERSITY ROW
MADISON, WI 53705
Internal Medicine (Gastroenterology)
750 UNIVERSITY ROW
MADISON, WI 53705
Internal Medicine (Gastroenterology)
750 UNIVERSITY ROW
MADISON, WI 53705
Nurse Practitioner
750 UNIVERSITY ROW, MADISON
MADISON, WI 53705
Nurse Practitioner
750 UNIVERSITY ROW
MADISON, WI 53705

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 Ian Grimes's NPI number?

The NPI number for Ian Grimes is 1275737165. It was assigned to this individual provider in the NPPES registry on June 13, 2007.

Where is Ian Grimes located?

Ian Grimes practices at 750 University Row, Madison, WI 53705. The listed phone number is (608) 890-5000.

What is Ian Grimes's specialty?

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

Is Ian Grimes enrolled in Medicare?

Yes. Ian Grimes 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 Ian Grimes accept?

Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, Group Health Cooperative-SCW, HealthPartners and Quartz and 1 other insurer list Ian Grimes 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 Ian Grimes affiliated with any hospitals?

According to CMS data, Ian Grimes is affiliated with Unitypoint Health - Meriter and University Of Wi Hospitals & Clinics Authority.

When was this NPI record last updated?

The NPPES record for Ian Grimes was last updated on January 27, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.