DR. LUKEJOHN WELCH DAY M.D.
NPI 1669623773
Internal Medicine - Gastroenterology in San Francisco, CA
About Dr. Lukejohn Welch Day M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LUKEJOHN WELCH DAY M.D. (NPI 1669623773) is an individual gastroenterology provider in San Francisco, California, licensed in California (A93534) and active in the NPI registry since October 2008. He is enrolled in Medicare PECOS and is a graduate of Stanford University School Of Medicine (2004).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Lukejohn Welch Day M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94143 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Lukejohn Day's NPI number?
The NPI number for Lukejohn Day is 1669623773. It was assigned to this individual provider in the NPPES registry on October 7, 2008.
Where is Lukejohn Day located?
Lukejohn Day practices at 505 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 377-2176.
What is Lukejohn Day's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Lukejohn Day enrolled in Medicare?
Yes. Lukejohn Day is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
When was this NPI record last updated?
The NPPES record for Lukejohn Day was last updated on October 7, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Lukejohn Welch Day, M.D. · NPI 1669623773
Gastroenterology physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since October 7, 2008.
## Identity
- **NPI:** 1669623773 (Entity type: Individual)
- **Enumerated:** October 7, 2008
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** A93534 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 505 PARNASSUS AVE, San Francisco, CA 94143-2204
- **Phone:** (415) 377-2176
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Stanford University School Of Medicine, class of 2004
## Record status
- **NPPES last updated:** October 7, 2008
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Source: [NPI Profile](https://npiprofile.com/npi/1669623773) · Data from the CMS NPPES public registry.