Clay Block, M.D.
NPI 1962593608 · Nephrology Physician · Lebanon, NH
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Clay Block, M.D. is a Nephrology Physician provider in Lebanon, NH (NPI 1962593608).
Provider details
- NPI number
- 1962593608
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 10853 (NH)
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
1,031 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 244 | $70 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 198 | $95 |
| 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 | 185 | $16 |
| Hemodialysis Procedure With Physician Evaluation90935 | 131 | $64 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 52 | $45 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Calcitriol | 42 | 13 |
| Amlodipine Besylate | 37 | 11 |
| Furosemide | 33 | 11 |
| Losartan Potassium | 33 | 17 |
| Allopurinol | 20 | — |
| Carvedilol | 16 | — |
| Pantoprazole Sodium | 13 | — |
| Doxazosin Mesylate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-27
- Last updated
- 2011-06-30
Frequently asked questions
- What is Clay Block's NPI number?
- Clay Block's National Provider Identifier (NPI) is 1962593608, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clay Block's specialty?
- Clay Block is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Clay Block located?
- Clay Block's practice location on file with NPPES is 1 Medical Center Dr, Lebanon, NH 03756-1000.
- What is Clay Block's phone number?
- The practice phone number listed in the NPPES registry for Clay Block is (603) 653-3830.
- Does Clay Block accept Medicare?
- Clay Block is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Clay Block's NPI active?
- Yes — Clay Block's NPI (1962593608) is active in the NPPES registry as of the last update on 2011-06-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.