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Edit this profileAt a glance
- 1631 4Th St Sw # 114B, Mason City, IA 50401
About Dr. Mullenbach
Jake L. Mullenbach, DO practices internal medicine in Mason City, IA. The provider's National Provider Identifier (NPI) is 1396440574.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (641) 428-6000
- Email not available
Practice Locations
1631 4TH ST SW # 114B
Mason City, IA 50401
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internists at this location 4
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 7
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 6 related providers in 1 group
Common questions
What does Dr. Mullenbach specialize in?
Dr. Mullenbach is an internist in Mason City, IA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where is Dr. Mullenbach located?
Dr. Mullenbach is listed at 1631 4Th St Sw # 114B, Mason City, IA 50401. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Mullenbach's phone number?
The number on file is (641) 428-6000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Mullenbach's NPI number?
Dr. Mullenbach's National Provider Identifier is 1396440574. 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 long has Dr. Mullenbach been practicing?
Dr. Mullenbach has 3+ years experience. Registered with an NPI since 2023. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has Dr. Mullenbach confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Mullenbach. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.