Ronald Alvarado Dyer, MD
NPI 1255856027 · Neurocritical Care Physician · Oklahoma City, OK
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ronald Alvarado Dyer, MD is a Neurocritical Care Physician provider in Oklahoma City, OK (NPI 1255856027).
Provider details
- NPI number
- 1255856027
- Entity type
- Individual
- Primary specialty
- Neurocritical Care PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 125071832 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
229 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 191 | $192 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 38 | $71 |
Typical Medicare-allowed amounts for these services range $71–$192 (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.
Practice location
Mailing address
Additional practice locations (1)
- 5841 S Maryland Ave # Mc2030Chicago, IL 60637Phone: (773) 702-6222Fax: (773) 834-7250
Registry dates
- Enumerated
- 2017-08-14
- Last updated
- 2026-04-16
- Certified
- 2026-04-16
Frequently asked questions
- What is Ronald Alvarado Dyer's NPI number?
- Ronald Alvarado Dyer's National Provider Identifier (NPI) is 1255856027, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Alvarado Dyer's specialty?
- Ronald Alvarado Dyer is listed in the NPPES registry with a primary specialty of Neurocritical Care Physician (Allopathic & Osteopathic Physicians).
- Where is Ronald Alvarado Dyer located?
- Ronald Alvarado Dyer's practice location on file with NPPES is 825 Ne 10th St Ste 5b, Oklahoma City, OK 73104-5417.
- What is Ronald Alvarado Dyer's phone number?
- The practice phone number listed in the NPPES registry for Ronald Alvarado Dyer is (405) 271-3635.
- Does Ronald Alvarado Dyer accept Medicare?
- Ronald Alvarado Dyer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ronald Alvarado Dyer's NPI active?
- Yes — Ronald Alvarado Dyer's NPI (1255856027) is active in the NPPES registry as of the last update on 2026-04-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.