Clay A. Block, M.D.
Nephrology Physician · Lebanon, NH
Clay A. Block, M.D. is a nephrology physician with a practice address in Lebanon, New Hampshire, and NPI 1962593608, issued on Sep 27, 2006. Check the license (New Hampshire 10853, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Clay A. Block
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 10853 NH
Self-reported in NPPES; status is on the state search - Practice location
- 1 Medical Center Dr, Lebanon, NH 03756
- Phone
- (603) 653-3830
- Enumerated
- Sep 27, 2006
- Record last updated
- Jun 30, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (603) 653-3991
- Medicaid IDs
- 30200810 NH
0RE5704 VT - Medicare enrollment
- Enrolled (PECOS I20060301000579); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 1989
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 37 in New Hampshire → Look up another NPI →
Also registered at 1 Medical Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maria Abbate, NPFamily Nurse Practitioner1669683637
- McCall Abbott, APRNFamily Nurse Practitioner1396292454
- Lauren AbbuhlStudent in an Organized Health Care Education/Training Program1760322986
- William Abdu, M.D.Orthopaedic Surgery of the Spine Physician1134162324
- Iryna Aberkorn, MDFamily Medicine Physician1780846071
- Majd Aboul Hosn, MDStudent in an Organized Health Care Education/Training Program1932901949
Verify Clay A. Block in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 10853Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average nephrology physician in 2024
357 Medicare Part D claims for 74 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Calcitriol42 claims
- Amlodipine Besylate37 claims
- Furosemide33 claims
- Losartan Potassium33 claims
- Allopurinol20 claims
- Carvedilol16 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
2 hospitals and group practices
- Mary Hitchcock Memorial HospitalLebanon, NH · Acute Care Hospitals3 of 5 stars
- Dartmouth-Hitchcock ClinicLebanon, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Clay A. Block among 37 nephrology physician records in New Hampshire
Clay A. Block, M.D. is one of 37 nephrology physician records with a practice address in New Hampshire. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 24% of them.
- NPI issued2006 · 24% of these records are older, 49% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 84% of these records are
- Graduated1989 · median 2001 among the 31 with a school on file
- Record last updated2011 · 73% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in New Hampshire
There are 37 nephrology physician records in New Hampshire.
All 37 in New Hampshire → Every provider in Lebanon → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Elizabeth Brant, M.D.Lebanon, NH 037561275700049
- Temi-Ete Ediale, M.DLebanon, NH 037561790303782
- Martha GraberLebanon, NH 037561740375609
- Charles Hopley, MDLebanon, NH 037561811251721
- Thomas Kaneko, MDLebanon, NH 037561851343859
- Ramandeep Kaur, MDLebanon, NH 037561710224175
- Marios Prikis, M.D.Lebanon, NH 037561700949765
- Brian Remillard, MDLebanon, NH 037561124059829
Common questions
What is Clay A. Block, M.D.'s NPI number?
Clay A. Block, M.D.'s National Provider Identifier (NPI) is 1962593608, issued on Sep 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Clay A. Block, M.D. located?
The NPPES record lists a practice address at 1 Medical Center Dr, Lebanon, NH, 03756. Phone: (603) 653-3830. Providers update this record themselves, so call before visiting.
How can I verify Clay A. Block, M.D.'s license?
NPPES lists New Hampshire license number 10853, as entered by the provider. Search the New Hampshire Board of Medicine at https://www.oplc.nh.gov/board-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Clay A. Block, M.D. prescribe under Medicare Part D?
In 2024, Clay A. Block, M.D. had 357 Medicare Part D claims for 74 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.