Physician Profile
Unclaimed ProfileAbout KOETS
Based in Grand Rapids, MI, Mark Henry Koets, MD is listed in the NPI registry under pulmonary disease. Mark is also listed as specialising in critical care medicine.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Areas of Expertise
Common questions
What does Dr. Koets specialise in?
Dr. Koets is a lung specialist in Grand Rapids, MI. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Pulmonary Disease”.
NPI registry
Where is Dr. Koets located?
Dr. Koets is listed at 100 MICHIGAN ST NE, Grand Rapids, MI 49503. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Koets's phone number?
The number on file is (616) 267-8244. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Koets?
Dr. Koets's National Provider Identifier is 1891735825. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How much experience does Dr. Koets have?
Dr. Koets has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practised for longer than this.
NPI registry
What does Dr. Koets do most often?
According to Medicare billing data, Dr. Koets the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Koets's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Koets. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (616) 267-8244
- Email not available
Practice Locations
100 MICHIGAN ST NE
Grand Rapids, MI 49503
Procedures Most Often Billed to Medicare
34 services · 19 patients · 1 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Critical care, first 30-74 minutes | Office visit | 99291 |
34 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other lung specialists in Grand Rapids 8
Same specialty, same city.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.