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JAMES D GEIGER MD
NPI 1366544694
Surgery - Pediatric Surgery in Ann Arbor, MI

Active since September 05, 2006PECOS Enrolled
1500 E MEDICAL CENTER DR, ANN ARBOR, MI 48109(734) 936-4000 Get Directions Write a Review

NPPES record last updated: May 17, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 17, 2023, Nov 19, 2019 (2 updates tracked since 2019).

About James D Geiger Md NPPES

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

JAMES D GEIGER MD (NPI 1366544694) is an individual pediatric surgery provider in Ann Arbor, Michigan, licensed in Michigan (4301051391) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS and maintains 5 additional practice locations.

NPPES Registry Identity

NPI1366544694
Entity TypeIndividualMale
Primary Taxonomy2086S0120X
Provider Legal NameJAMES D GEIGERCredential: MD
Location Address1500 E MEDICAL CENTER DRAnn Arbor, MI 48109-5000
Mailing Address3621 S State StAnn Arbor, MI 48108-1633 · (734) 647-5299
Phone(734) 936-4000
Sole ProprietorNo
Enumeration DateSeptember 5, 2006
Last NPPES UpdateMay 17, 20232 updates tracked since enumeration
NPPES CertifiedMay 17, 2023
✔ NPI 1366544694 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtySurgery · Pediatric SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0120X
Licenses✔ Licensed in MI · 4301051391✔ Licensed in OH · 35.055677
Definition
A surgeon with expertise in the management of surgical conditions in premature and newborn infants, children and adolescents.
Also ListedSurgeryTaxonomy 208600000X · License 35.055677 (OH), 4301051391 (MI)
Also ListedSurgery · Surgical Critical CareTaxonomy 2086S0102X · License 35.055677 (OH), 4301051391 (MI)
1500 E MEDICAL CENTER DR, Ann Arbor, MI 48109
Open in Google Maps ↗

Secondary Practice Locations 5

Location 1700 Childrens DrColumbus, OH 43205-2664 · Phone (614) 722-2000
Location 2555 S 18th StColumbus, OH 43205-2654 · Phone (614) 722-2000
Location 3455 Executive Campus DrWesterville, OH 43082-8870 · Phone (614) 722-2000
Location 45665 Venture DrDublin, OH 43017-2159 · Phone (614) 722-2000
Location 5536 S Trimble RdMansfield, OH 44906-3418 · Phone (614) 722-2000

Other Identifiers 3

Medicaid0151286OH
Medicaid3157138MI
OtherH291504-CSAOH · Cgs-medicare

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, 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 (PECOS)

James D Geiger Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

8

Medicare enrollment records show James Geiger reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Regents Of The University Of Michigan
Same address
Nephrology
1500 E MEDICAL CENTER DR
Ann Arbor, MI 48109
  • Reassigned Medicare billing, Michigan enrollment
  • 2,377 clinicians in this Medicare group
NPI 1003848144 (734) 936-4000
St Joseph Mercy Hospital
4.2 mi
Internal Medicine
5333 MCAULEY DR, SUITE 4001
Ypsilanti, MI 48197
  • Reassigned Medicare billing, Michigan enrollment
  • 180 clinicians in this Medicare group
NPI 1548388606 (734) 712-3980
Northwest Pediatric Specialists, LLC
44 mi
Pediatrics
2213 CHERRY ST
Toledo, OH 43608
  • Reassigned Medicare billing, Ohio enrollment
  • 233 clinicians in this Medicare group
NPI 1033709100 (419) 251-3232
Mercy Health Physicians North Specialty Care LLC
44 mi
Surgery
2200 JEFFERSON AVE
Toledo, OH 43604
  • Reassigned Medicare billing, Ohio enrollment
  • 690 clinicians in this Medicare group
NPI 1306468418 (888) 696-3541
Promedica Children's Specialists
45 mi
Pediatrics
100 MADISON AVE, MSC-S38805
Toledo, OH 43604
  • Reassigned Medicare billing, Ohio enrollment
  • 70 clinicians in this Medicare group
NPI 1245444959 (567) 585-1969
Hurley Medical Center
46 mi
Radiology
5494 S DORT HWY
Flint, MI 48507
  • Reassigned Medicare billing, Michigan enrollment
  • 467 clinicians in this Medicare group
NPI 1194143982 (810) 262-7740
Children's Surgical Associates, Corporation
166 mi
Pediatric Surgery
700 CHILDREN'S DRIVE
Columbus, OH 43205
  • Reassigned Medicare billing, Ohio enrollment
  • 211 clinicians in this Medicare group
NPI 1417905324 (614) 722-2000
Nationwide Children's Hospital
166 mi
Multi-Specialty
700 CHILDRENS DR
Columbus, OH 43205
  • Reassigned Medicare billing, Ohio enrollment
  • 976 clinicians in this Medicare group
NPI 1851179873 (614) 722-2055

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Referred Medical Equipment & Supplies CMS DME claims 2

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

Enteral feeding supply kit; pump fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4035
Other-Enteral and Parenteral · category OB006N
1 supplier12 claims364 services$4.42 avg. paid by Medicare
Enteral formula, nutritionally complete, calorically dense (equal to or greater than 1.5 kcal/ml) with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4152
Other-Enteral and Parenteral · category OB006N
1 supplier12 claims3,203 services$0.26 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.

LOKMAN SUNG MD
Pathology (Forensic Pathology)
1500 E MEDICAL CENTER DR, 2ND FLOOR UNIVERSITY HOSPITAL RECP PATHOLOGY
ANN ARBOR, MI 48109
Washtenaw County (800) 862-7284
SAMEER DEV SAINI M.D.
Internal Medicine (Gastroenterology)
1500 E MEDICAL CENTER DR
ANN ARBOR, MI 48109
Washtenaw County (734) 936-4000
KYLE DAVID PERRY MD
Pathology (Cytopathology)
1500 E MEDICAL CENTER DR
ANN ARBOR, MI 48109
Washtenaw County (734) 936-4000
DR. DAVID ALEXANDER STEWART M.D.
Pediatrics
1500 E MEDICAL CENTER DR, 12TH FLOOR C.S. MOTT CHILDREN'S HOSPITAL ROOM 525
ANN ARBOR, MI 48109
Washtenaw County (734) 763-5302
DR. MICHAEL EDMUND WATSON MD
Pediatrics (Pediatric Infectious Diseases)
1500 E MEDICAL CENTER DR
ANN ARBOR, MI 48109
Washtenaw County (734) 936-4000
CARRIE KRAEGER PORTER PA-C
Physician Assistant
1500 E MEDICAL CENTER DR
ANN ARBOR, MI 48109
Washtenaw County (734) 936-6666
DENISE LYNN BERRY CRNA
Nurse Anesthetist, Certified Registered
1500 E MEDICAL CENTER DR
ANN ARBOR, MI 48109
Washtenaw County (734) 936-4000
KETTI SOPHIA PETERSEN MD
Family Medicine (Hospice and Palliative Medicine)
1500 E MEDICAL CENTER DR
ANN ARBOR, MI 48109
Washtenaw County (734) 936-4000

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 James Geiger's NPI number?

The NPI number for James Geiger is 1366544694. It was assigned to this individual provider in the NPPES registry on September 5, 2006.

Where is James Geiger located?

James Geiger practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109. The listed phone number is (734) 936-4000.

What is James Geiger's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Pediatric Surgery, with taxonomy code 2086S0120X.

Is James Geiger enrolled in Medicare?

Yes. James Geiger is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for James Geiger's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Geiger reassigns Medicare benefits to 8 organizations: Regents Of The University Of Michigan (Ann Arbor, MI), St Joseph Mercy Hospital (Ypsilanti, MI), Northwest Pediatric Specialists, LLC (Toledo, OH), Mercy Health Physicians North Specialty Care LLC (Toledo, OH), Promedica Children's Specialists (Toledo, OH) and 3 more organizations, listed in the Medicare section above. 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 James Geiger's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does James Geiger accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and Antidote Health Plan of Ohio, Inc. and 6 other insurers list James Geiger 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.

When was this NPI record last updated?

The NPPES record for James Geiger was last updated on May 17, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.