Shiv Kumar, MD
Nephrology Physician · Portsmouth, NH
Shiv Kumar, MD is a nephrology physician with a practice address in Portsmouth, New Hampshire, and NPI 1326076555, issued on Jun 28, 2006. Check the license (New Hampshire 14351, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Shiv Kumar
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 14351 NH
Self-reported in NPPES; status is on the state search - Practice location
- 875 Greenland RD, Portsmouth, NH 03801
- Phone
- (603) 422-6719
- Enumerated
- Jun 28, 2006
- Record last updated
- Feb 8, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (603) 373-6833
- Medicaid ID
- 01955742 NY
- Medicare enrollment
- Enrolled (PECOS I20090113000665); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 37 in New Hampshire → Look up another NPI →
Also registered at 875 Greenland RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Peter Attenborough, PA-CPhysician Assistant1093895369
- Alison Baker, D.O.Sports Medicine (Neuromusculoskeletal Medicine) Physician1619057015
- Scott Bendell, MAC CAAcupuncturist1609992106
- Kelli Carter, L. AC.Acupuncturist1528534971
- Michael Danielski, M.D.Nephrology Physician1114918984
- Stefanie Diamond, PACSports Medicine (Neuromusculoskeletal Medicine) Physician1497835896
Verify Shiv Kumar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 14351Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average nephrology physician in 2024
797 Medicare Part D claims for 187 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Losartan Potassium80 claims
- Furosemide67 claims
- Torsemide67 claims
- Amlodipine Besylate63 claims
- Allopurinol39 claims
- Metoprolol Succinate33 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 90.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $77.40
1 payment: food and beverage; the largest payer was Calliditas Therapeutics US Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Seacoast Kidney And Hypertension Specialists, P.L.L.C.Portsmouth, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Shiv Kumar among 37 nephrology physician records in New Hampshire
Shiv Kumar, MD 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
- Graduated1992 · median 2001 among the 31 with a school on file
- Record last updated2012 · 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 Portsmouth → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Kulli Barrett, M.D.Portsmouth, NH 038011437140209
- Satyaki Chakrabarty, MDPortsmouth, NH 038011457846891
- Michael Danielski, M.D.Portsmouth, NH 038011114918984
- Sucharit Joshi, M.D.Portsmouth, NH 038011114045184
- Naresh Matta, M.D.Portsmouth, NH 038011801850367
- Clay Block, M.D.Lebanon, NH 037561962593608
- Elizabeth Brant, M.D.Lebanon, NH 037561275700049
- Temi-Ete Ediale, M.DLebanon, NH 037561790303782
Common questions
What is Shiv Kumar, MD's NPI number?
Shiv Kumar, MD's National Provider Identifier (NPI) is 1326076555, issued on Jun 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Shiv Kumar, MD located?
The NPPES record lists a practice address at 875 Greenland RD, Portsmouth, NH, 03801. Phone: (603) 422-6719. Providers update this record themselves, so call before visiting.
How can I verify Shiv Kumar, MD's license?
NPPES lists New Hampshire license number 14351, 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 Shiv Kumar, MD prescribe under Medicare Part D?
In 2024, Shiv Kumar, MD had 797 Medicare Part D claims for 187 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
What is Shiv Kumar, MD's MIPS final score?
The 2023 MIPS final score is 90.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.