Benjamin Calayag, MD
NPI 1609969138 · Family Medicine Physician · Waukegan, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Benjamin Calayag, MD is a Family Medicine Physician provider in Waukegan, IL (NPI 1609969138).
Provider details
- NPI number
- 1609969138
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
83% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 62 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 209 | 50 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 207 | 38 |
| Alprazolam | 190 | 19 |
| Atorvastatin Calcium | 117 | 31 |
| Naproxen | 113 | 33 |
| Fluticasone Propionate | 103 | 39 |
| Metformin Hcl | 98 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$218 across 11 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-02
- Last updated
- 2007-07-08
Frequently asked questions
- What is Benjamin Calayag's NPI number?
- Benjamin Calayag's National Provider Identifier (NPI) is 1609969138, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Benjamin Calayag's specialty?
- Benjamin Calayag is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Benjamin Calayag located?
- Benjamin Calayag's practice location on file with NPPES is 2400 Belvidere Rd., Waukegan, IL 60085.
- What is Benjamin Calayag's phone number?
- The practice phone number listed in the NPPES registry for Benjamin Calayag is (847) 377-8440.
- Does Benjamin Calayag accept Medicare?
- Benjamin Calayag is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Benjamin Calayag's NPI active?
- Yes — Benjamin Calayag's NPI (1609969138) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.