Joan Mass, MD

ActiveIndividual ProviderInternal Medicine
NPI issued: February 9, 2006

Quick Facts

NPI Number
1295708162
TypeIndividual
StatusActive
SpecialtyInternal Medicine
Taxonomy207R00000X — Internal Medicine
Phone
(636) 947-5000
StateMO

NPI Validation Status: Verified

✅Valid 10-digit NPI number (1295708162)
✅Active status confirmed
✅Verified by CMS NPPES Registry
✅HIPAA compliant identifier
✅Enumeration date on file (February 9, 2006)
Data source: CMS NPPES

Provider Overview

JOAN MASS, MD is a Internal Medicine provider based in Saint Charles, MO who has been registered with CMS since 2006. This NPI is currently Active under CMS NPPES registry.

Provider Details

NPI Number1295708162
Provider TypeIndividual Provider
GenderFemale
CredentialMD
StatusActive
Enumeration DateFebruary 9, 2006

Practice Location

CitySaint Charles
StateMO
ZIP Code63301-2844
Phone(636) 947-5000

Specialties & Licenses

★ Primary
SpecialtyInternal Medicine
Taxonomy Code207R00000X
License StateMO

Mailing Address

CitySaint Charles
StateMO
ZIP Code63301-2844
Phone(636) 947-5000
Same as practice location

How to Use This NPI

📋

For Insurance Billing

Use NPI 1295708162 in Box 33 of the CMS-1500 claim form. This number is required by all major insurance carriers to identify the billing provider and process electronic medical claims.

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For Credentialing

Reference NPI 1295708162for provider credential verification. Hospital systems, state licensing boards, and CAQH directories query this number to verify the provider's active clinical status.

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For Patients

Share NPI 1295708162 with your insurance company. If you need to verify out-of-network benefits or file a reimbursement claim, your insurance provider will require this number to process it.

About Internal Medicine

Internal Medicine physicians (internists) specialize in the prevention, diagnosis, and nonsurgical treatment of adult illnesses, managing complex chronic conditions and multi-system diseases.

Browse all Internal Medicineproviders →
📊
213,549
Internal Medicine Providers in the US

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People Also Ask

What is Joan Mass's NPI number?
Joan Mass's NPI number is 1295708162, a unique 10-digit identifier issued by the Centers for Medicare & Medicaid Services (CMS).
Is Joan Mass's NPI currently active?
Yes, Joan Mass's NPI status is Active as of the latest CMS NPPES database updates.
What does Joan Mass specialize in?
Joan Mass specializes in Internal Medicine. The healthcare taxonomy code associated with this specialty is 207R00000X.
Where does Joan Mass practice?
Joan Mass practices in Saint Charles, MO 63301-2844.
When was Joan Mass's NPI issued?
Joan Mass's NPI was issued on February 9, 2006.
What is Joan Mass's provider type?
Joan Mass is registered as an Individual Provider under CMS NPI Type 1.