Maria Quejada, MD
NPI 1558348722 · Hematology & Oncology Physician · Naperville, IL
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Quejada, MD is a Hematology & Oncology Physician provider in Naperville, IL (NPI 1558348722).
Provider details
- NPI number
- 1558348722
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 36100626 (IL)
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
968 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 573 | $152 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 182 | $102 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 68 | $83 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 56 | $193 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 33 | $182 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 115 | 25 |
| Anastrozole | 78 | 20 |
| Rivaroxabanbrand: Xarelto | 69 | 14 |
| Prochlorperazine Maleate | 58 | 33 |
| Levothyroxine Sodium | 42 | — |
| Ondansetron Hcl | 41 | 25 |
| Hydroxyurea | 39 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$144 across 7 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
- 2005-12-28
- Last updated
- 2013-04-02
Frequently asked questions
- What is Maria Quejada's NPI number?
- Maria Quejada's National Provider Identifier (NPI) is 1558348722, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Quejada's specialty?
- Maria Quejada is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Maria Quejada located?
- Maria Quejada's practice location on file with NPPES is 120 Spalding Drive, Naperville, IL 60540-6766.
- What is Maria Quejada's phone number?
- The practice phone number listed in the NPPES registry for Maria Quejada is (630) 527-3788.
- Does Maria Quejada accept Medicare?
- Maria Quejada is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Quejada's NPI active?
- Yes — Maria Quejada's NPI (1558348722) is active in the NPPES registry as of the last update on 2013-04-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.