Gregory Barkley, M.D.
NPI 1851466593 · Neurology Physician · Detroit, MI
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Barkley, M.D. is a Neurology Physician provider in Detroit, MI (NPI 1851466593).
Provider details
- NPI number
- 1851466593
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 4301045745 (MI)
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
19 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
236 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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 65 | $140 |
| Prolonged Office Or Other Outpatient Evaluation and Management Service(s) Beyond the Maximum Required Time of the Primary Procedure Which Has Been Selected Using Total Time on the Date of the Primary Service; Each Additional 15 Minutes By the Physician OrG2212 | 63 | $31 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 56 | $16 |
| Measurement of Brain Wave Activity (eeg), Awake and Asleep95819 | 20 | $56 |
| Measurement of Brain Wave Activity (eeg), Awake and Drowsy95816 | 18 | $56 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 89 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lamotrigine | 706 | 123 |
| Clonazepam | 563 | 80 |
| Cannabidiol (cbd)brand: Epidiolex | 486 | 65 |
| Levetiracetam | 328 | 74 |
| Lacosamide | 254 | 38 |
| Lorazepam | 248 | 54 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 191 | 21 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-21
- Last updated
- 2007-07-08
Frequently asked questions
- What is Gregory Barkley's NPI number?
- Gregory Barkley's National Provider Identifier (NPI) is 1851466593, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Barkley's specialty?
- Gregory Barkley is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Barkley located?
- Gregory Barkley's practice location on file with NPPES is 2799 W Grand Blvd, Detroit, MI 48202-2608.
- What is Gregory Barkley's phone number?
- The practice phone number listed in the NPPES registry for Gregory Barkley is (313) 916-2600.
- Does Gregory Barkley accept Medicare?
- Gregory Barkley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Barkley's NPI active?
- Yes — Gregory Barkley's NPI (1851466593) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.