Clarence Shannon, MD
NPI 1851516165 · Anesthesiology Physician · Washington, DC
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Clarence Shannon, MD is a Anesthesiology Physician provider in Washington, DC (NPI 1851516165).
Provider details
- NPI number
- 1851516165
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 044586 (GA)
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 tenure25% of score
19 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
141 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 | 56 | $123 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 25 | $86 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 20 | $154 |
| Injection of Substance Into Lower Spine Canal Using Imaging Guidance62323 | 18 | $93 |
| Injection of Local Anesthetic for Abdominal Wall Pain Control on Both Sides Using Imaging Guidance64488 | 11 | $63 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 117 | 26 |
| Tramadol Hcl | 84 | 15 |
| Pregabalin | 51 | 19 |
| Oxycodone Hcl | 43 | — |
| Meloxicam | 36 | 12 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 35 | — |
| Methadone Hcl | 28 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$190 across 3 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
- 2007-04-13
- Last updated
- 2025-09-11
Frequently asked questions
- What is Clarence Shannon's NPI number?
- Clarence Shannon's National Provider Identifier (NPI) is 1851516165, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clarence Shannon's specialty?
- Clarence Shannon is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Clarence Shannon located?
- Clarence Shannon's practice location on file with NPPES is 6900 Georgia Ave, Nw , Ward 44, Washington, DC 20307-5001.
- What is Clarence Shannon's phone number?
- The practice phone number listed in the NPPES registry for Clarence Shannon is (202) 782-0039.
- Does Clarence Shannon accept Medicare?
- Clarence Shannon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Clarence Shannon's NPI active?
- Yes — Clarence Shannon's NPI (1851516165) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.