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DR. DECERIE BACULI DAYAG MD
NPI 1336660901
Internal Medicine in Upland, CA

Active since July 04, 2017PECOS Enrolled
811 E 11TH ST STE 208, UPLAND, CA 91786(909) 985-0883(909) 985-5762 Get Directions Write a Review

NPPES record last updated: December 18, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 18, 2025, Jul 4, 2017 (2 updates tracked since 2017).

About Dr. Decerie Baculi Dayag Md NPPES

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

DR. DECERIE BACULI DAYAG MD (NPI 1336660901) is an individual internal medicine provider in Upland, California, licensed in California (A169662) and active in the NPI registry since July 2017. She is enrolled in Medicare PECOS and is a graduate of Other (2014).

NPPES Registry Identity

NPI1336660901
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. DECERIE BACULI DAYAGCredential: MD
Location Address811 E 11TH ST STE 208Upland, CA 91786-4872
Mailing Address16465 Sierra Lakes Pkwy Ste 115Fontana, CA 92336-1242 · (909) 823-8000 · Fax (909) 823-8088
Phone(909) 985-0883
Fax(909) 985-5762
Sole ProprietorYes
Medical School CMSOtherGraduated 2014
Enumeration DateJuly 4, 2017
Last NPPES UpdateDecember 18, 20252 updates tracked since enumeration
NPPES CertifiedDecember 18, 2025
✔ NPI 1336660901 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A169662
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
811 E 11TH ST STE 208, Upland, CA 91786
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Decerie Baculi Dayag Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6507283256
PECOS Enrollment IDI20260213003781
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91786 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
$136.04 typical visit price
range $59.60 – $179.42
Typical copayment $34.01 (range $14.90 – $44.85)
Most-billed visit code 99204
Established Patient
$104.64 typical visit price
range $19.37 – $146.42
Typical copayment $26.16 (range $4.84 – $36.60)
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 2

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

SUDHIR K REDDY MD INC
Internal Medicine (Gastroenterology)
811 E 11TH ST STE 208
UPLAND, CA 91786
San Bernardino County (909) 982-2279
DR. MYSORE R NAGARAJA M.D.
Internal Medicine (Gastroenterology)
811 E 11TH ST STE 208
UPLAND, CA 91786
San Bernardino County (909) 982-2279

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 Decerie Dayag's NPI number?

The NPI number for Decerie Dayag is 1336660901. It was assigned to this individual provider in the NPPES registry on July 4, 2017.

Where is Decerie Dayag located?

Decerie Dayag practices at 811 E 11th St Ste 208, Upland, CA 91786. The listed phone number is (909) 985-0883.

What is Decerie Dayag's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Decerie Dayag enrolled in Medicare?

Yes. Decerie Dayag is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Decerie Dayag was last updated on December 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.