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CHRISTOPHER OSTERBAUER DO
NPI 1427543578
Internal Medicine in Kalamazoo, MI

Active since June 29, 2018PECOS EnrolledAccepts Medicare Assignment
82.36/100
CMS Quality Rating
601 JOHN ST, KALAMAZOO, MI 49007(269) 341-8481 Get Directions Write a Review

NPPES record last updated: August 27, 2025. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Nov 17, 2022, Aug 10, 2021, Jun 29, 2018 (3 updates tracked since 2018).

About Christopher Osterbauer Do NPPES

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

CHRISTOPHER OSTERBAUER DO (NPI 1427543578) is an individual internal medicine provider in Kalamazoo, Michigan, licensed in Michigan (5101026205) and active in the NPI registry since June 2018. He is enrolled in Medicare PECOS, is affiliated with Marshfield Medical Center - Rice Lake, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1427543578
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameCHRISTOPHER OSTERBAUERCredential: DO
Location Address601 JOHN STKalamazoo, MI 49007-5341
Mailing Address601 John StKalamazoo, MI 49007-5341
Phone(269) 341-8481
Sole ProprietorNo
Medical School CMSMidwestern University, Chicago College Of Osteopathic MedGraduated 2018
Enumeration DateJune 29, 2018
Last NPPES UpdateAugust 27, 20253 updates tracked since enumeration
NPPES CertifiedAugust 27, 2025
✔ NPI 1427543578 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in MI · 5101026205✔ Licensed in MI · 5101023982
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedHospitalistTaxonomy 208M00000X · License 81001 (WI)
601 JOHN ST, Kalamazoo, MI 49007
Open in Google Maps ↗

Secondary Practice Locations 2

Location 11000 Houghton AveSaginaw, MI 48602-5303 · Phone (989) 583-8900
Location 21700 W Stout StRice Lake, WI 54868-5000 · Phone (715) 236-4450

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Medica, Sanford Health Plan.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 Osterbauer Do 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 ID6709133796
PECOS Enrollment IDI20220824000510
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 6

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
133 services67 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.
131 services66 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
113 services106 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
53 services50 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
42 services41 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.
13 services13 patients

Hospital Affiliations CMS Care Compare 2

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

Marshfield Medical Center - Rice Lake

Acute Care Hospitals · Rice Lake, WI
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520011
Location1700 West Stout StreetRice Lake, WI 54868 · Barron County
Emergency services Birthing friendly

Marshfield Medical Center

Acute Care Hospitals · Marshfield, WI
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number520037
Location611 St Joseph AveMarshfield, WI 54449 · Wood County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49007 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
$126.15 typical visit price
range $54.34 – $166.68
Typical copayment $31.53 (range $13.58 – $41.67)
Most-billed visit code 99204
Established Patient
$96.44 typical visit price
range $17.09 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

82.36/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality76.38
Promoting Interoperability100
Improvement Activities40
Cost50.29

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.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
2 suppliers18 claims18 services$100.24 avg. paid by Medicare
Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738
DME-Oxygen and Supplies · category DC000N
2 suppliers14 claims14 services$33.93 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.

DR. AMANDA KEATING WALKER D.O.
Obstetrics & Gynecology
601 JOHN ST, SUITE N1200
KALAMAZOO, MI 49007
Kalamazoo County (269) 341-7979
ANDREW W. WALKER MD
Emergency Medicine
601 JOHN ST
KALAMAZOO, MI 49007
Kalamazoo County (847) 404-6853
JUSTINE MELODIE OUDSEMA PA-C
Physician Assistant
601 JOHN ST, BOX 74
KALAMAZOO, MI 49007
Kalamazoo County (269) 341-8481
OCHUKO ANDREW OGHOR CRNA
Nurse Anesthetist, Certified Registered
601 JOHN ST
KALAMAZOO, MI 49007
Kalamazoo County (239) 341-7654
MARK J TIESZEN MD
Internal Medicine (Critical Care Medicine)
601 JOHN ST, SUITE M-510
KALAMAZOO, MI 49007
Kalamazoo County (269) 341-7762
DR. ERIC S SHAY M.D.
Internal Medicine
601 JOHN ST, SUITE M-170
KALAMAZOO, MI 49007
Kalamazoo County (269) 381-5060
EVGENIIA MORLEY RD
Dietitian, Registered
601 JOHN ST
KALAMAROO, MI 49007
Kalamazoo County (269) 341-6615
SELECT HOSPITALISTS, PLLC
Internal Medicine
601 JOHN ST
KALAMAZOO, MI 49007
Kalamazoo County (269) 341-7100

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 Osterbauer's NPI number?

The NPI number for Christopher Osterbauer is 1427543578. It was assigned to this individual provider in the NPPES registry on June 29, 2018.

Where is Christopher Osterbauer located?

Christopher Osterbauer practices at 601 John St, Kalamazoo, MI 49007. The listed phone number is (269) 341-8481.

What is Christopher Osterbauer's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Christopher Osterbauer enrolled in Medicare?

Yes. Christopher Osterbauer 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 Osterbauer accept?

Health plans from Anthem Blue Cross and Blue Shield, Medica and Sanford Health Plan list Christopher Osterbauer 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 Osterbauer affiliated with any hospitals?

According to CMS data, Christopher Osterbauer is affiliated with Marshfield Medical Center - Rice Lake and Marshfield Medical Center.

When was this NPI record last updated?

The NPPES record for Christopher Osterbauer was last updated on August 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.