Calvin L. Day, Jr., M.d., P.a.

ActiveOrganizationDermatology
NPI issued: September 13, 2005

Quick Facts

NPI Number
1861487167
TypeOrganization
StatusActive
SpecialtyDermatology
Taxonomy207N00000X — Dermatology
Phone
(210) 615-8345
StateTX

NPI Validation Status: Verified

✅Valid 10-digit NPI number (1861487167)
✅Active status confirmed
✅Verified by CMS NPPES Registry
✅HIPAA compliant identifier
✅Enumeration date on file (September 13, 2005)
Data source: CMS NPPES

Provider Overview

CALVIN L. DAY, JR., M.D., P.A. is a Dermatology provider based in San Antonio, TX who has been registered with CMS since 2005. This NPI is currently Active under CMS NPPES registry.

Provider Details

NPI Number1861487167
Provider TypeOrganization
StatusActive
Enumeration DateSeptember 13, 2005

Practice Location

CitySan Antonio
StateTX
ZIP Code78229-3411
Phone(210) 615-8345

Specialties & Licenses

★ Primary
SpecialtyDermatology
Taxonomy Code207N00000X
License StateTX

Mailing Address

CitySan Antonio
StateTX
ZIP Code78229-3411
Phone(210) 615-8345
Same as practice location

How to Use This NPI

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For Insurance Billing

Use NPI 1861487167 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 1861487167for 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 1861487167 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 Dermatology

Dermatologists specialize in the medical, surgical, and cosmetic treatment of disorders affecting the skin, hair, nails, and mucous membranes.

Browse all Dermatologyproviders →
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20,662
Dermatology Providers in the US

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People Also Ask

What is Calvin L. Day, Jr., M.d., P.a.'s NPI number?
Calvin L. Day, Jr., M.d., P.a.'s NPI number is 1861487167, a unique 10-digit identifier issued by the Centers for Medicare & Medicaid Services (CMS).
Is Calvin L. Day, Jr., M.d., P.a.'s NPI currently active?
Yes, Calvin L. Day, Jr., M.d., P.a.'s NPI status is Active as of the latest CMS NPPES database updates.
What does Calvin L. Day, Jr., M.d., P.a. specialize in?
Calvin L. Day, Jr., M.d., P.a. specializes in Dermatology. The healthcare taxonomy code associated with this specialty is 207N00000X.
Where does Calvin L. Day, Jr., M.d., P.a. practice?
Calvin L. Day, Jr., M.d., P.a. practices in San Antonio, TX 78229-3411.
When was Calvin L. Day, Jr., M.d., P.a.'s NPI issued?
Calvin L. Day, Jr., M.d., P.a.'s NPI was issued on September 13, 2005.
What is Calvin L. Day, Jr., M.d., P.a.'s provider type?
Calvin L. Day, Jr., M.d., P.a. is registered as an Organization under CMS NPI Type 2.