Abortion, InducedAcute Kidney InjuryDilatation and Curettage
Dr. Clay A. Block, MD
NPI1962593608PAC ID6709892664
- Medicare services, 2024
- 1,031
- Medicare patients, 2024
- 309
- Part D claims, 2024
- 357
- Publications
- 15
- Hospital affiliations
- 5
- Practice address
- 1 Medical Center Drive, Lebanon, NH 03756
- Practice phone
- Call (603) 650-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Block's professional email, personal email and mobile number
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Dr. Clay A. Block is a nephrologist in Lebanon, New Hampshire
Dr. Block practices at Dartmouth Hitchcock Medical Center in Lebanon, New Hampshire, part of Dartmouth-Hitchcock Health.
Dr. Block's NPI, 1962593608, was assigned on September 27, 2006. Dr. Block graduated from University of California, San Francisco School of Medicine in 1989. Dr. Block holds New Hampshire license 10853.
NPI and contact details
- NPI
- 1962593608NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6709892664
- NPI enumeration date
- September 27, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (603) 650-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Clay A. Block practices at Dartmouth Hitchcock Medical Center in Lebanon, New Hampshire
Dr. Block's primary practice is Dartmouth Hitchcock Medical Center, at 1 Medical Center Drive, Lebanon, NH 03756 in Grafton County. The practice phone is (603) 650-5000.
- Dartmouth Hitchcock Medical Center1 Medical Center Drive, Lebanon, NH 03756 · Grafton CountyPhone(603) 650-5000
Source: Dmand AI Affiliation Data
Dr. Clay A. Block is affiliated with 7 sites of care and 3 medical groups
Dr. Block's primary practice is Dartmouth Hitchcock Medical Center in Lebanon, New Hampshire, part of Dartmouth-Hitchcock Health. Dr. Block is also affiliated with Alice Peck Day Memorial Hospital. The medical group on file is Dartmouth Hitchcock Clinics Manchester. Dmand AI also links Dr. Block to 3 more hospitals, 2 dialysis centers and 2 medical groups, each named with a free account.
Alice Peck Day Memorial HospitalDartmouth Hitchcock Clinics Manchester3 hospitalsNames with a free account2 dialysis centersNames with a free account2 medical groupsNames with a free account
See all 10 affiliations for Dr. BlockSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Clay A. Block's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Block practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dartmouth Hitchcock Medical Center | Available with a free account |
| +6 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Clay A. Block is one of 29 nephrologists in New Hampshire
Nephrology is Dr. Block's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Block is licensed in New Hampshire.
Specialties and state licenses
- Nephrology, New HampshirePrimary
Nephrologists near Dr. Block
Counts of nephrologists with a Dmand AI profile, by place and practice. Each opens the list.
29nephrologists in New Hampshire
8nephrologists in Lebanon
7nephrologists at Dartmouth Hitchcock Medical CenterSources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Clay A. Block billed Medicare for 1,031 services in 2024
CMS data shows 1,031 Medicare services from Dr. Block across 13 procedure codes in 2024, for 309 Medicare patients. Medicare paid $56,776 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 20241,031
Medicare patients309
Paid by Medicare$56,776
Procedure codes13
Dr. Block's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6872024: 6318%
- Tests and treatments
- 2023: 2322024: 2157%
- Other services
- 2023: 02024: 185
Dr. Block compared with the New Hampshire median for nephrologists, 2024
- Dr. Block
- New Hampshire median
- Medicare services
- 1,031vs 1,062Close to median
- Medicare patients
- 309vs 37417% below
- Part D claims
- 239vs 66664% below
Medians across 27 nephrologists in New Hampshire with Dmand AI profiles that report each measure.
Dr. Block's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Block?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Block and other nephrologists in New Hampshire.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Clay A. Block treated 309 Medicare patients in 2024, average age 73
CMS counts 309 Medicare patients who saw Dr. Block in 2024. The largest group is 65 to 74, with 123 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 22% are also on Medicaid. Their average risk score is 3.51, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Block's median patient age at 68, with 47% women.
Medicare patients, 2024309
Average age73
Average risk score3.51
Also on Medicaid22%
Dr. Block's Medicare patients by age, 2024
Dr. Block's Medicare patients by sex, 2024
- Women12942%
- Men18058%
Chronic conditions among Dr. Block's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes50%
- Ischemic heart disease49%
- Arthritis48%
- Heart failure48%
- Mood disorders42%
Share of Medicare patients with each condition. A patient can have several.
Dr. Block's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women47%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Clay A. Block wrote 357 Medicare Part D claims in 2024
In 2024, Dr. Block wrote 357 Medicare Part D claims for 74 patients. 92% of them were for generic drugs. CMS names the drug for 239 of them, across 11 drugs with 11 or more claims each, at $4,367 in total drug cost. In 2023, CMS named 185 claims across 7 drugs.
Part D claims, 2024357
Drugs named by CMS11
Total drug cost$4,367
Part D patients74
Dr. Block's Part D claims by kind of drug, 2024
- Generic327 claims92%
- Brand-name30 claims8%
Dr. Block's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1852024: 23929%
Drugs named by CMS: 11 in 2024, 7 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Clay A. Block offers telehealth to Medicare patients
Dr. Block accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Block as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Clay A. Block has 15 publications on record
Dmand AI links 15 papers to Dr. Block, published from 2010 to 2024. 2010 was the busiest year, with 2. The most frequent topics are Acute Kidney Injury, Contrast Media and Coronary Angiography. Dr. Block's most frequent co-authors are Harold L. Manning, MD, Brian David Remillard, MD and Judith A. Benstein, MD.
Papers15
Years published2010 to 2024
Dr. Block's papers by year, 2010 to 2024
Topics Dr. Block writes about most
- Acute Kidney Injury
- Contrast Media
- Coronary Angiography
- Critical Illness
- Renal Dialysis
- Ultrasonography
- Vena Cava, Inferior
Dr. Block's most frequent co-authors
- Harold L. Manning, MD3 shared papers
- Brian David Remillard, MD3 shared papers
- Judith A. Benstein, MD1 shared paper
Recent publications by Dr. Block
Clin J Am Soc Nephrol
Acute Kidney InjuryBetacoronavirusCoronavirus Infections
See who Dr. Block researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Block works with, so you can find a warm path to the right nephrologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Clay A. Block received $20 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Block from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Fresenius USA Marketing, Inc. paid the most, $20.
Companies that paid Dr. Block the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Clay A. Block graduated from University of California, San Francisco School of Medicine
Dr. Block graduated from University of California, San Francisco School of Medicine in 1989.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Clay A. Block's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Clay A. Block
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Clay A. Block's NPI number?
Dr. Clay A. Block's NPI number is 1962593608. It was assigned on September 27, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Clay A. Block?
Dr. Clay A. Block is a nephrologist in Lebanon, New Hampshire. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Clay A. Block practice?
Dr. Block practices at 1 Medical Center Drive, Lebanon, NH 03756. Dr. Block's primary practice is Dartmouth Hitchcock Medical Center in Lebanon, New Hampshire, part of Dartmouth-Hitchcock Health. Dmand AI also links Dr. Block to 3 hospitals, 2 dialysis centers and 2 medical groups.
What is Dr. Clay A. Block's office phone number?
The practice phone on file for Dr. Block is (603) 650-5000.
What is Dr. Clay A. Block's medical license number?
Dr. Block holds New Hampshire license 10853.
Which hospitals is Dr. Clay A. Block affiliated with?
Dr. Block practices at Dartmouth Hitchcock Medical Center in Lebanon, New Hampshire. Dr. Block is also affiliated with Alice Peck Day Memorial Hospital. Dmand AI links Dr. Block to 3 more hospitals.
What medical group is Dr. Clay A. Block part of?
Dr. Block is linked to Dartmouth Hitchcock Clinics Manchester. Dmand AI links Dr. Block to 2 more medical groups.
Does Dr. Clay A. Block accept Medicare?
Yes. CMS data shows Dr. Block billed Medicare for 1,031 services in 2024, and Dr. Block accepts Medicare assignment.
Does Dr. Clay A. Block offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Block as offering telehealth services.
How many Medicare patients does Dr. Clay A. Block see?
CMS counts 309 Medicare patients who saw Dr. Block in 2024, with an average age of 73.
Show 7 more questionsShow fewer questions
What services does Dr. Clay A. Block bill to Medicare?
In 2024, Dr. Block's most billed Medicare services were hospital inpatient care (99232), office visit, established patient (99214) and medicare service (G2211).
Where did Dr. Clay A. Block go to medical school?
Dr. Block graduated from University of California, San Francisco School of Medicine in 1989.
What drugs does Dr. Clay A. Block prescribe most?
In 2024 Medicare Part D data, Dr. Block's most prescribed drugs by claims were Calcitriol, Amlodipine Besylate and Furosemide.
Has Dr. Clay A. Block received payments from drug or device companies?
CMS Open Payments shows $20 in general payments to Dr. Block from 1 company from 2025 to 2025. The largest total came from Fresenius USA Marketing, Inc.
How long has Dr. Clay A. Block been practicing?
Dr. Block graduated from medical school in 1989, 37 years ago.
Does Dr. Clay A. Block do research?
Dmand AI links 15 publications to Dr. Block, published from 2010 to 2024.
Who does Dr. Clay A. Block publish with?
Dr. Block's most frequent co-authors are Harold L. Manning, MD (3 shared papers), Brian David Remillard, MD (3 shared papers) and Judith A. Benstein, MD (1 shared paper).
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