Terrence Ryan, M.D.
NPI 1619925559 · Neurological Surgery Physician · Columbia, MO
Enrolled with Medicare as Practitioner - Neurosurgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Terrence Ryan, M.D. is a Neurological Surgery Physician provider in Columbia, MO (NPI 1619925559).
Provider details
- NPI number
- 1619925559
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 2006002066 (MO)
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
20 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
587 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 147 | $83 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 112 | $46 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 110 | $118 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 54 | $151 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 43 | $73 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More |
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 |
|---|---|---|
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 63 | 48 |
| Gabapentin | 53 | 25 |
| Methylprednisolone | 32 | 24 |
| Diazepam | 27 | 23 |
| Baclofen | 19 | — |
| Levetiracetam | 15 | — |
| Cephalexin | 13 | — |
| Pregabalin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-04
- Last updated
- 2020-07-22
- Certified
- 2020-07-22
Frequently asked questions
- What is Terrence Ryan's NPI number?
- Terrence Ryan's National Provider Identifier (NPI) is 1619925559, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Terrence Ryan's specialty?
- Terrence Ryan is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Terrence Ryan located?
- Terrence Ryan's practice location on file with NPPES is 1605 E Broadway, Columbia, MO 65201-8023.
- What is Terrence Ryan's phone number?
- The practice phone number listed in the NPPES registry for Terrence Ryan is (573) 815-4242.
- Does Terrence Ryan accept Medicare?
- Terrence Ryan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Terrence Ryan's NPI active?
- Yes — Terrence Ryan's NPI (1619925559) is active in the NPPES registry as of the last update on 2020-07-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.