Santiago Aguilar Duenas, MD
NPI 1285897553 · Internal Medicine Physician · Memphis, TN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Santiago Aguilar Duenas, MD is a Internal Medicine Physician provider in Memphis, TN (NPI 1285897553).
Provider details
- NPI number
- 1285897553
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- E-12764 (AR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
6,871 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 819 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 672 | $118 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 505 | $82 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 504 | $72 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 416 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 122 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 255 | 102 |
| Atorvastatin Calcium | 251 | 107 |
| Gabapentin | 216 | 54 |
| Losartan Potassium | 151 | 59 |
| Levothyroxine Sodium | 143 | 54 |
| Rosuvastatin Calcium | 128 | 44 |
| Potassium Chloride |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$153 across 8 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
Additional practice locations (2)
- 2100 N 7th StWest Memphis, AR 72301-2017Phone: (901) 226-3610Fax: (901) 226-3612
- 7601 Southcrest PkwySouthaven, MS 38671-4739Phone: (662) 772-2980Fax: (662) 772-2960
Registry dates
- Enumerated
- 2008-07-08
- Last updated
- 2020-08-18
- Certified
- 2020-08-18
Frequently asked questions
- What is Santiago Aguilar Duenas's NPI number?
- Santiago Aguilar Duenas's National Provider Identifier (NPI) is 1285897553, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Santiago Aguilar Duenas's specialty?
- Santiago Aguilar Duenas is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Santiago Aguilar Duenas located?
- Santiago Aguilar Duenas's practice location on file with NPPES is 6019 Walnut Grove Rd, Memphis, TN 38120.
- What is Santiago Aguilar Duenas's phone number?
- The practice phone number listed in the NPPES registry for Santiago Aguilar Duenas is (901) 226-3610.
- Does Santiago Aguilar Duenas accept Medicare?
- Santiago Aguilar Duenas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Santiago Aguilar Duenas's NPI active?
- Yes — Santiago Aguilar Duenas's NPI (1285897553) is active in the NPPES registry as of the last update on 2020-08-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.