Individual provider

Amanda Porter, MD

Neurology Physician Internal Medicine Physician Behavioral Neurology & Neuropsychiatry Physician Medicare enrolled

Amanda Porter, MD is a Neurology Physician in Kalkaska, MI, registered under NPI 1639638729. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty.

Getting there

The practice address on file is 419 S CORAL ST, Kalkaska, MI 49646. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

419 S CORAL ST, Kalkaska, MI 49646 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
90096 SC Neurology Physician primary
TRN29276 FL Internal Medicine Physician
4301512346 MI Behavioral Neurology & Neuropsychiatry…
TRN29276 FL Neurology Physician
4301512346 MI Neurology Physician
ME147513 FL Neurology Physician

Licences are recorded in 3 states: SC, FL, MI. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Neuropsychiatry
PAC ID
6709111347

Enrolled in Medicare 3 times, across 3 states:

StateEnrollment IDProvider type
Florida I20230624000005 Practitioner - Neuropsychiatry
Michigan I20240718003387 Practitioner - Neurology
South Carolina I20251205000509 Practitioner - Neurology

Medicare enrolment is recorded as approved under the provider type Practitioner - Neuropsychiatry. There are 3 separate enrolment records across 3 states (FL, MI, SC). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

Licensed in 3 states

This provider holds licences in 3 states: Florida, Michigan and South Carolina. The practice address on file is in Kalkaska, MI, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.

FL Florida
Licence
TRN29276
Specialty
Internal Medicine Physician
Verify with the FL board →
MI Michigan practice address
Licence
4301512346
Specialty
Behavioral Neurology & Neuropsychiatry…
Verify with the MI board →
SC South Carolina
Licence
90096
Specialty
Neurology Physician
Verify with the SC board →

Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.

What Neurology covers

A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures. NUCC Health Care Provider Taxonomy, code 2084N0400X
Allopathic & Osteopathic Physicians Psychiatry & Neurology Neurology

All registered taxonomy codes

This provider registers 6 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
2084N0400X Neurology Physician Neurology 90096 SC primary
207R00000X Internal Medicine Physician TRN29276 FL
2084B0040X Behavioral Neurology & Neuropsychiatry Physician Behavioral Neurology & Neuropsychiatry 4301512346 MI
2084N0400X Neurology Physician Neurology TRN29276 FL
2084N0400X Neurology Physician Neurology 4301512346 MI
2084N0400X Neurology Physician Neurology ME147513 FL

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1639638729 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateMar 18, 2019
Last updatedApr 9, 2026
StatusActive
Sole proprietorNo
CredentialMD
Practice address 419 S CORAL ST
Kalkaska, MI 49646
(231) 258-7777
This record was updated on Apr 9, 2026, which is recent enough that the contact details are likely still accurate.

Number check

1639638729 passes the NPI check digit test The final digit 9 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 6 3 9 6 3 8 7 2
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 6 6 9 3 3 7 7 4

Sum = 71 · next multiple of 10 = 80 · check digit = 9 · actual last digit = 9

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1639638729?
NPI 1639638729 is the National Provider Identifier assigned to Amanda Porter, MD in Kalkaska, MI. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Neurology cover?
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
How do I contact Amanda Porter, MD?
The phone number on file with NPPES is (231) 258-7777, last updated Apr 9, 2026. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Amanda Porter, MD accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1639638729 a valid number?
Yes. 1639638729 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.