Regina Walker, MD
NPI 1538143557 · Otolaryngology Physician · Western Springs, IL
Regina Walker, MD is a Otolaryngology Physician provider in Western Springs, IL (NPI 1538143557).
Provider details
- NPI number
- 1538143557
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 036-076781 (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
789 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 504 | $124 |
| Ultrasound Scan of Head and Neck Soft Tissue76536 | 231 | $105 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 34 | $174 |
| Fine Needle Aspiration Biopsy Using Ultrasound Guidance, First Growth10005 | 20 | $130 |
Typical Medicare-allowed amounts for these services range $105–$174 (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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodiumbrand: Unithroid | 943 | 230 |
| Levothyroxine Sodiumbrand: Synthroid | 310 | 81 |
| Levothyroxine Sodium | 294 | 86 |
| Levothyroxine Sodiumbrand: Levoxyl | 182 | 45 |
| Liothyronine Sodium | 162 | 53 |
| Levothyroxine Sodiumbrand: Tirosint | 31 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$385 across 24 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
- 2005-12-02
- Last updated
- 2015-09-16
Frequently asked questions
- What is Regina Walker's NPI number?
- Regina Walker's National Provider Identifier (NPI) is 1538143557, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Regina Walker's specialty?
- Regina Walker is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Regina Walker located?
- Regina Walker's practice location on file with NPPES is 4475 Lawn Ave, Western Springs, IL 60558-1283.
- What is Regina Walker's phone number?
- The practice phone number listed in the NPPES registry for Regina Walker is (708) 246-4475.
- Is Regina Walker's NPI active?
- Yes — Regina Walker's NPI (1538143557) is active in the NPPES registry as of the last update on 2015-09-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.