TESSA MARCELLE BUCHAN ANTALAN MD
NPI 1427346758
Internal Medicine - Geriatric Medicine in San Diego, CA
About Tessa Marcelle Buchan Antalan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TESSA MARCELLE BUCHAN ANTALAN MD (NPI 1427346758) is an individual geriatric medicine provider in San Diego, California, licensed in California (A130238) and active in the NPI registry since July 2011. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2009).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Tessa Marcelle Buchan Antalan Md 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.
Medicare Billing Reassignments
4Medicare enrollment records show Tessa Antalan reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Diego, CA 92103
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Regents Of The University Of California
- 1,051 clinicians in this Medicare group
San Diego, CA 92103
- Reassigned Medicare billing, California enrollment
- 1,100 clinicians in this Medicare group
San Diego, CA 92123
- Reassigned Medicare billing, California enrollment
- 1,437 clinicians in this Medicare group
Hemet, CA 92544
- Reassigned Medicare billing, California enrollment
- 17 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 9
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92103 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.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 DIEGO, CA 92103
SAN DIEGO, CA 92103
SAN DIEGO, CA 92103
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 Tessa Antalan's NPI number?
The NPI number for Tessa Antalan is 1427346758. It was assigned to this individual provider in the NPPES registry on July 20, 2011.
Where is Tessa Antalan located?
Tessa Antalan practices at 200 W Arbor Dr, San Diego, CA 92103. The listed phone number is (800) 926-8273.
What is Tessa Antalan's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.
Is Tessa Antalan enrolled in Medicare?
Yes. Tessa Antalan 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.
Which organizations bill Medicare for Tessa Antalan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tessa Antalan reassigns Medicare benefits to 4 organizations: Regents Of The University Of California - Ucsd Medical Group (San Diego, CA), Family Health Centers Of San Diego Inc (San Diego, CA), Emergency And Acute Care Medical Corporation (San Diego, CA) and Kolli Medical Corporation (Hemet, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Tessa Antalan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Tessa Antalan was last updated on April 19, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Tessa Marcelle Buchan Antalan, MD · NPI 1427346758
Geriatric Medicine physician in San Diego, California. Individual provider, active in the CMS NPPES registry since July 20, 2011.
## Identity
- **NPI:** 1427346758 (Entity type: Individual)
- **Enumerated:** July 20, 2011
- **Primary specialty:** Internal Medicine - Geriatric Medicine · taxonomy 207RG0300X
- **State license:** A130238 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 200 W ARBOR DR, San Diego, CA 92103-9000
- **Phone:** (800) 926-8273
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Regents Of The University Of California - Ucsd Medical Group (NPI 1336267137, San Diego, CA); Family Health Centers Of San Diego Inc (NPI 1629456900, San Diego, CA); Emergency And Acute Care Medical Corporation (NPI 1437103942, San Diego, CA); Kolli Medical Corporation (NPI 1659716884, Hemet, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** April 19, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1427346758) · Data from the CMS NPPES public registry.