Paola Casillas, MD
NPI 1689178691 · Family Medicine Physician · Tucson, AZ
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Paola Casillas, MD is a Family Medicine Physician provider in Tucson, AZ (NPI 1689178691).
Provider details
- NPI number
- 1689178691
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
8 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
55 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 | 22 | $9 |
| Hemoglobin A1c Level83036 | 21 | $10 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 12 | $10 |
Typical Medicare-allowed amounts for these services range $9–$10 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 33 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 91 | 32 |
| Lisinopril | 63 | 20 |
| Levothyroxine Sodium | 56 | 17 |
| Metformin Hcl | 50 | 18 |
| Gabapentin | 48 | 14 |
| Losartan Potassium | 30 | — |
| Duloxetine Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$18 across 1 record (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
- 2018-03-23
- Last updated
- 2025-03-20
- Certified
- 2025-03-04
Frequently asked questions
- What is Paola Casillas's NPI number?
- Paola Casillas's National Provider Identifier (NPI) is 1689178691, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Paola Casillas's specialty?
- Paola Casillas is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Paola Casillas located?
- Paola Casillas's practice location on file with NPPES is 3950 S Country Club Rd Ste 130, Tucson, AZ 85714-2203.
- What is Paola Casillas's phone number?
- The practice phone number listed in the NPPES registry for Paola Casillas is (520) 670-3909.
- Does Paola Casillas accept Medicare?
- Paola Casillas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Paola Casillas's NPI active?
- Yes — Paola Casillas's NPI (1689178691) is active in the NPPES registry as of the last update on 2025-03-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.