MR. DALE GORDON LEFFLER D.O.
NPI 1346463254
Internal Medicine - Cardiovascular Disease in Holland, MI
About Mr. Dale Gordon Leffler D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. DALE GORDON LEFFLER D.O. (NPI 1346463254) is an individual cardiovascular disease provider in Holland, Michigan, licensed in Michigan (5101014955) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS, is affiliated with Corewell Health Zeeland Hospital, and is a graduate of Other (2001).
NPPES Registry Identity
Specialties & Licenses 2
Accepted 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
Mr. Dale Gordon Leffler D.o. 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.
Medicare Billing Reassignments
4Medicare enrollment records show Dale Leffler reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Holland, MI 49424
- Reassigned Medicare billing, Michigan enrollment
- 2,446 clinicians in this Medicare group
Hartford, MI 49057
- Reassigned Medicare billing, Michigan enrollment
- 107 clinicians in this Medicare group
Saint Joseph, MI 49085
- Reassigned Medicare billing, Michigan enrollment
- 249 clinicians in this Medicare group
Saint Joseph, MI 49085
- Reassigned Medicare billing, Michigan enrollment
- 724 clinicians in this Medicare group
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 41
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.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Corewell Health Zeeland Hospital
Acute Care Hospitals · Zeeland, MILakeland Hospital, St Joseph
Acute Care Hospitals · St Joseph, MISpectrum Health
Acute Care Hospitals · Grand Rapids, MIHolland Community Hospital
Acute Care Hospitals · Holland, MICorewell Health Gerber Hospital
Critical Access Hospitals · Fremont, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49423 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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.
HOLLAND, MI 49423
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 Dale Leffler's NPI number?
The NPI number for Dale Leffler is 1346463254. It was assigned to this individual provider in the NPPES registry on April 10, 2007.
Where is Dale Leffler located?
Dale Leffler practices at 602 Michigan Ave Suite 102, Holland, MI 49423. The listed phone number is (616) 494-8724.
What is Dale Leffler's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is Dale Leffler enrolled in Medicare?
Yes. Dale Leffler 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 Dale Leffler's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Dale Leffler reassigns Medicare benefits to 4 organizations: Spectrum Health Primary Care Partners (Holland, MI), Lakeland Community Hospital Watervliet (Hartford, MI), Lakeland Hospitals At Niles And St Joseph, Inc (Saint Joseph, MI) and Lakeland Medical Practices (Saint Joseph, MI). 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 Dale Leffler's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Dale Leffler accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 1 other insurer list Dale Leffler 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 Dale Leffler affiliated with any hospitals?
According to CMS data, Dale Leffler is affiliated with Corewell Health Zeeland Hospital, Lakeland Hospital, St Joseph, Spectrum Health, Holland Community Hospital and Corewell Health Gerber Hospital.
When was this NPI record last updated?
The NPPES record for Dale Leffler was last updated on March 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.