Nicholas Peacock, D.O.
NPI 1619316304 · Emergency Medicine Physician · Oak Park, IL
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nicholas Peacock, D.O. is a Emergency Medicine Physician provider in Oak Park, IL (NPI 1619316304).
Provider details
- NPI number
- 1619316304
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 036142666 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
13 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
335 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 156 | $127 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 124 | $185 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 26 | $8 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 17 | $75 |
| Critical Care, First 30-74 Minutes99291 | 12 | $222 |
Typical Medicare-allowed amounts for these services range $8–$222 (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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 31 | 30 |
| Ondansetronbrand: Ondansetron Odt | 22 | 22 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 18 | 17 |
| Methylprednisolone | 16 | 15 |
| Tizanidine Hcl | 13 | 13 |
| Ibuprofen | 12 | 12 |
| Doxycycline Hyclate | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-06-17
- Last updated
- 2022-07-21
Frequently asked questions
- What is Nicholas Peacock's NPI number?
- Nicholas Peacock's National Provider Identifier (NPI) is 1619316304, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas Peacock's specialty?
- Nicholas Peacock is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nicholas Peacock located?
- Nicholas Peacock's practice location on file with NPPES is 520 S Maple Ave, Oak Park, IL 60304-1022.
- What is Nicholas Peacock's phone number?
- The practice phone number listed in the NPPES registry for Nicholas Peacock is (708) 660-5995.
- Does Nicholas Peacock accept Medicare?
- Nicholas Peacock is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nicholas Peacock's NPI active?
- Yes — Nicholas Peacock's NPI (1619316304) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.