Arthur Santiago, M.D.
NPI 1003860669 · Nephrology Physician · Rahway, NJ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Arthur Santiago, M.D. is a Nephrology Physician provider in Rahway, NJ (NPI 1003860669).
Provider details
- NPI number
- 1003860669
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MA052276 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,920 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 774 | $83 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 370 | $139 |
| Dialysis Services, 1 Physician Visit Per Month (20 Years Or Older)90962 | 151 | $216 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 120 | $183 |
| Hemodialysis Procedure With Physician Evaluation90935 | 110 | $75 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 104 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 248 | 64 |
| Atorvastatin Calcium | 211 | 68 |
| Levothyroxine Sodium | 194 | 47 |
| Alprazolam | 189 | 39 |
| Metformin Hcl | 180 | 54 |
| Pantoprazole Sodium | 160 | 56 |
| Amlodipine Besylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$628 across 34 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
- 2006-05-19
- Last updated
- 2015-12-18
Frequently asked questions
- What is Arthur Santiago's NPI number?
- Arthur Santiago's National Provider Identifier (NPI) is 1003860669, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Arthur Santiago's specialty?
- Arthur Santiago is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Arthur Santiago located?
- Arthur Santiago's practice location on file with NPPES is 307 Grove St, Rahway, NJ 07065-2525.
- What is Arthur Santiago's phone number?
- The practice phone number listed in the NPPES registry for Arthur Santiago is (732) 382-3390.
- Does Arthur Santiago accept Medicare?
- Arthur Santiago is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Arthur Santiago's NPI active?
- Yes — Arthur Santiago's NPI (1003860669) is active in the NPPES registry as of the last update on 2015-12-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.