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DR. MARK A DITTENBIR M.D.
NPI 1942249727
Surgery in Kalamazoo, MI

Active since June 06, 2006PECOS EnrolledAccepts Medicare Assignment
601 JOHN ST STE M283A, KALAMAZOO, MI 49007(269) 349-7696(269) 488-8313 Get Directions Write a Review

NPPES record last updated: May 1, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Mark A Dittenbir M.d. NPPES

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

DR. MARK A DITTENBIR M.D. (NPI 1942249727) is an individual surgery provider in Kalamazoo, Michigan, licensed in Michigan (4301048692) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Lakeland Hospital, St Joseph, and is a graduate of Michigan State University College Of Human Medicine (1984).

NPPES Registry Identity

NPI1942249727
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameDR. MARK A DITTENBIRCredential: M.D.
Location Address601 JOHN ST STE M283AKalamazoo, MI 49007-5341
Mailing Address601 John St, Suite M283aKalamazoo, MI 49007-5341 · (269) 349-7696 · Fax (269) 488-8313
Phone(269) 349-7696
Fax(269) 488-8313
Sole ProprietorNo
Medical School CMSMichigan State University College Of Human MedicineGraduated 1984
Enumeration DateJune 6, 2006
Last NPPES UpdateMay 1, 2018
✔ NPI 1942249727 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in MI · 4301048692
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Also ListedSurgery · Vascular SurgeryTaxonomy 2086S0129X · License 4301048692 (MI)
601 JOHN ST STE M283A, Kalamazoo, MI 49007
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Other Identifiers 8

Other3403901640MI · Bcbs Ind Pin
Other116658Great Lakes Hlth Pln
Other1417961137MI · Bcbsm - Bronson
Other383148262Ein-healthcare Midwest
Other5515041Aetna Pin
Other020C91020MI · Bcbs Grp Pin
Medicaid1942249727MI
Medicaid3218986-10MI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona, Blue Cross Blue Shield of North Dakota, Cigna HealthCare of Arizona, Inc 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

Dr. Mark A Dittenbir 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 ID749192235
PECOS Enrollment IDI20040308000355, I20210730003106
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

7

Medicare enrollment records show Mark Dittenbir reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Bronson Methodist Hospital
Same address
Hospitalist
601 JOHN STREET
Kalamazoo, MI 49007
  • Reassigned Medicare billing, Michigan enrollment
  • 1,133 clinicians in this Medicare group
NPI 1417961137 (269) 341-7654
Lakeland Medical Practices
47 mi
Audiologist
42 N SAINT JOSEPH AVE STE 300
Niles, MI 49120
  • Reassigned Medicare billing, Michigan enrollment
  • 724 clinicians in this Medicare group
NPI 1134898505 (269) 687-2910
Springfield Hospital
668 mi
Critical Access Hospital
25 RIDGEWOOD ROAD
Springfield, VT 05156
  • Reassigned Medicare billing, Vermont enrollment
  • 153 clinicians in this Medicare group
NPI 1033225875 (802) 885-2151
St. Alexius Medical Center
811 mi
Nurse Anesthetist, Certified Registered
900 E BROADWAY AVE
Bismarck, ND 58501
  • Reassigned Medicare billing, North Dakota enrollment
  • 616 clinicians in this Medicare group
NPI 1629121074 (701) 530-7000
Scl Health Medical Group-Butte LLC
1,338 mi
Rural Health
214 S MAIN ST
Boulder, MT 59632
  • Reassigned Medicare billing, Montana enrollment
  • 278 clinicians in this Medicare group
NPI 1861031122 (406) 225-4201
Summit Healthcare Medical Associates
1,393 mi
Rural Health
625 N 13TH W
Saint Johns, AZ 85936
  • Reassigned Medicare billing, Arizona enrollment
  • 99 clinicians in this Medicare group
NPI 1962166934 (928) 337-3000
Acute Care Surgery Medical Group, Inc.
1,895 mi
Surgery
2801 K STREET SUITE 440
Sacramento, CA 95816
  • Reassigned Medicare billing, Michigan enrollment
  • 42 clinicians in this Medicare group
NPI 1700069549 (916) 441-0400

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 2

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 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.
45 services24 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.
34 services33 patients

Hospital Affiliations CMS Care Compare 2

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

Lakeland Hospital, St Joseph

Acute Care Hospitals · St Joseph, MI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230021
Location1234 Napier AvenueSt Joseph, MI 49085 · Berrien County
Emergency services Birthing friendly

Chi St Alexius Health

Acute Care Hospitals · Bismarck, ND
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number350002
Location900 E BroadwayBismarck, ND 58501 · Burleigh 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
$84.74 typical visit price
range $54.34 – $166.68
Typical copayment $21.18 (range $13.58 – $41.67)
Most-billed visit code 99203
Established Patient
$68.07 typical visit price
range $17.09 – $135.40
Typical copayment $17.01 (range $4.27 – $33.85)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Mark Dittenbir's NPI number?

The NPI number for Mark Dittenbir is 1942249727. It was assigned to this individual provider in the NPPES registry on June 6, 2006.

Where is Mark Dittenbir located?

Mark Dittenbir practices at 601 John St Ste M283a, Kalamazoo, MI 49007. The listed phone number is (269) 349-7696.

What is Mark Dittenbir's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Mark Dittenbir enrolled in Medicare?

Yes. Mark Dittenbir 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 Mark Dittenbir's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Dittenbir reassigns Medicare benefits to 7 organizations: Bronson Methodist Hospital (Kalamazoo, MI), Lakeland Medical Practices (Niles, MI), Springfield Hospital (Springfield, VT), St. Alexius Medical Center (Bismarck, ND), Scl Health Medical Group-Butte LLC (Boulder, MT) and 2 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 Mark Dittenbir's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Dittenbir accept?

Health plans from Blue Cross Blue Shield of Arizona, Blue Cross Blue Shield of North Dakota, Cigna HealthCare of Arizona, Inc, PacificSource Health Plans and Priority Health and 1 other insurer list Mark Dittenbir 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 Mark Dittenbir affiliated with any hospitals?

According to CMS data, Mark Dittenbir is affiliated with Lakeland Hospital, St Joseph and Chi St Alexius Health.

When was this NPI record last updated?

The NPPES record for Mark Dittenbir was last updated on May 1, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.