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ALYSSA GAYLE CAPLAN
NPI 1144781915
Internal Medicine - Gastroenterology in San Carlos, CA

Active since March 26, 2019PECOS EnrolledAccepts Medicare Assignment
1000 LAUREL ST, SAN CARLOS, CA 94070(650) 596-8800(650) 596-8802 Get Directions Write a Review

NPPES record last updated: August 15, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 15, 2025, Jun 9, 2022 (2 updates tracked since 2022).

About Alyssa Gayle Caplan NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALYSSA GAYLE CAPLAN (NPI 1144781915) is an individual gastroenterology provider in San Carlos, California, licensed in California (A179987) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1144781915
Entity TypeIndividualFemale
Primary Taxonomy207RG0100X
Provider Legal NameALYSSA GAYLE CAPLAN
Location Address1000 LAUREL STSan Carlos, CA 94070-3939
Mailing Address1000 Laurel StSan Carlos, CA 94070-3939 · (650) 596-8800 · Fax (650) 596-8802
Phone(650) 596-8800
Fax(650) 596-8802
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateMarch 26, 2019
Last NPPES UpdateAugust 15, 20252 updates tracked since enumeration
NPPES CertifiedAugust 15, 2025
✔ NPI 1144781915 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in CA · A179987
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Also ListedInternal MedicineTaxonomy 207R00000X · License A179987 (CA)
1000 LAUREL ST, San Carlos, CA 94070
Open in Google Maps ↗

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

Alyssa Gayle Caplan 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.

PECOS PAC ID7719485523
PECOS Enrollment IDI20250811004007
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Alyssa Caplan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Digestive Care Associates, A Medical Corporation
Same address
Gastroenterology
1000 LAUREL ST
San Carlos, CA 94070
  • Reassigned Medicare billing, California enrollment
  • 7 clinicians in this Medicare group
NPI 1831323575 (650) 596-8800

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94070 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 8

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SCOTT D LEVENSON, MD
Internal Medicine (Gastroenterology)
1000 LAUREL ST
SAN CARLOS, CA 94070
San Mateo County (650) 596-8800
DR. ADRIENNE J NGUYEN MD
Internal Medicine (Gastroenterology)
1000 LAUREL ST
SAN CARLOS, CA 94070
San Mateo County (650) 596-8800
ROGER MIN KAO, M.D.
Internal Medicine (Gastroenterology)
1000 LAUREL ST
SAN CARLOS, CA 94070
San Mateo County (650) 596-8800
DR. SCOTT DAVID LEVENSON MD
Internal Medicine (Gastroenterology)
1000 LAUREL ST
SAN CARLOS, CA 94070
San Mateo County (650) 596-8800
DIGESTIVE CARE LABORATORY
Clinical Medical Laboratory
1000 LAUREL ST
SAN CARLOS, CA 94070
San Mateo County (650) 596-8800
DIGESTIVE CARE ASSOCIATES, A MEDICAL CORPORATION
Internal Medicine (Gastroenterology)
1000 LAUREL ST
SAN CARLOS, CA 94070
San Mateo County (650) 596-8800
DIGESTIVE CARE ASSOCIATES LABORATORY
Clinical Medical Laboratory
1000 LAUREL ST
SAN CARLOS, CA 94070
San Mateo County (650) 596-8800
ROGER KAO M.D.
Internal Medicine (Gastroenterology)
1000 LAUREL ST
SAN CARLOS, CA 94070
San Mateo County (650) 596-8800

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 Alyssa Caplan's NPI number?

The NPI number for Alyssa Caplan is 1144781915. It was assigned to this individual provider in the NPPES registry on March 26, 2019.

Where is Alyssa Caplan located?

Alyssa Caplan practices at 1000 Laurel St, San Carlos, CA 94070. The listed phone number is (650) 596-8800.

What is Alyssa Caplan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Alyssa Caplan enrolled in Medicare?

Yes. Alyssa Caplan 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 organization bills Medicare for Alyssa Caplan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alyssa Caplan reassigns Medicare benefits to Digestive Care Associates, A Medical Corporation (San Carlos, CA). The 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 Alyssa Caplan'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 Alyssa Caplan was last updated on August 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.