Individual provider

Reza Shams Pirzadeh, M.D.

Hospitalist Physician Internal Medicine Physician Medicare enrolled

Reza Shams Pirzadeh, M.D. is a Hospitalist Physician in Knoxville, TN, registered under NPI 1831419779. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.

Getting there

The practice address on file is 1924 ALCOA HWY U56, Knoxville, TN 37920. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

1924 ALCOA HWY U56, Knoxville, TN 37920 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
341739 LA Hospitalist Physician primary
M-2078 GU Internal Medicine Physician
MTL-2017-070 GU Internal Medicine Physician
54826 TN Internal Medicine Physician

Licences are recorded in 3 states: LA, GU, TN. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Internal Medicine
PAC ID
9032419585

Enrolled in Medicare 3 times, across 3 states:

StateEnrollment IDProvider type
Guam I20170823004406 Practitioner - Internal Medicine
Texas I20191025002220 Practitioner - Internal Medicine
Louisiana I20240814000061 Practitioner - Hospitalist

Medicare enrolment is recorded as approved under the provider type Practitioner - Internal Medicine. There are 3 separate enrolment records across 3 states (GU, TX, LA). 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: Guam, Louisiana and Tennessee. The practice address on file is in Knoxville, TN, 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.

GU Guam
Licence
M-2078
Specialty
Internal Medicine Physician
LA Louisiana
Licence
341739
Specialty
Hospitalist Physician
Verify with the LA board →
TN Tennessee practice address
Licence
54826
Specialty
Internal Medicine Physician
Verify with the TN 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 Hospitalist covers

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients. NUCC Health Care Provider Taxonomy, code 208M00000X
Allopathic & Osteopathic Physicians Hospitalist

All registered taxonomy codes

This provider registers 4 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
208M00000X Hospitalist Physician 341739 LA primary
207R00000X Internal Medicine Physician M-2078 GU
207R00000X Internal Medicine Physician MTL-2017-070 GU
207R00000X Internal Medicine Physician 54826 TN

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.

NPI1831419779 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateJun 2, 2010
Last updatedJun 14, 2024
StatusActive
Sole proprietorNo
CredentialM.D.
Practice address 1924 ALCOA HWY
U56
Knoxville, TN 37920
(865) 305-9081
Fax (865) 305-8769
Mailing address PO BOX 440426
Nashville, TN 37244
This record was updated on Jun 14, 2024, which is recent enough that the contact details are likely still accurate.

Number check

1831419779 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 8 3 1 4 1 9 7 7
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 8 6 1 8 1 9 7 5

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 1831419779?
NPI 1831419779 is the National Provider Identifier assigned to Reza Shams Pirzadeh, M.D. in Knoxville, TN. 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 Hospitalist Physician cover?
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for…
How do I contact Reza Shams Pirzadeh, M.D.?
The phone number on file with NPPES is (865) 305-9081, last updated Jun 14, 2024. 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 Reza Shams Pirzadeh, M.D. 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 1831419779 a valid number?
Yes. 1831419779 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.