NPPES file of Aug 9, 2026

Purba Biswas, MD

Nephrology Physician · Sierra Vista, AZ

Purba Biswas, MD is a nephrology physician with a practice address in Sierra Vista, Arizona, and NPI 1740274190, issued on Aug 31, 2005. Check the license (Arizona 34448, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1740274190
Name
Purba Biswas
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
34448 AZ
Self-reported in NPPES; status is on the state search
Practice location
1840 Paseo San Luis, Sierra Vista, AZ 85635
Phone
(520) 459-5959
Enumerated
Aug 31, 2005
Record last updated
Nov 5, 2023
Fax
(520) 459-0021
Medicare enrollment
Enrolled (PECOS I20050929000430); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Verify Purba Biswas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 34448
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Arizona license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

2.2 times the Medicare Part D claims of the average nephrology physician in 2024

3,270 Medicare Part D claims for 257 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 60 claims were for opioids.

  1. Purba Biswas3,270
  2. Specialty average1,465

Most prescribed

  1. Losartan Potassium198 claims
  2. Levothyroxine Sodium175 claims
  3. Amlodipine Besylate160 claims
  4. Rosuvastatin Calcium152 claims
  5. Furosemide129 claims
  6. Potassium Chloride107 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 MIPS final score for 2023 (Medicare payment program): 54.6 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score25.0
  2. Costout of 100 · 30%48.6
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Purba Biswas among 278 nephrology physician records in Arizona

Purba Biswas, MD is one of 278 nephrology physician records with a practice address in Arizona. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 77% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileYes · 82% of these records are
  • Graduated1991 · median 2001 among the 229 with a school on file
  • Record last updated2023 · 66% 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in Arizona

There are 278 nephrology physician records in Arizona.

The 8 nephrology physician records with the nearest ZIP codes

  1. G. Delaney Sturgeon, MDSierra Vista, AZ 856351952374738
  2. Joy Logan, MDGreen Valley, AZ 856141285732859
  3. Marc Olivier, M.DGreen Valley, AZ 856141427088350
  4. Paul Walshaw, M.D.Benson, AZ 856021023014586
  5. Fahad Alobaidi, M.D.Tucson, AZ 857121366882334
  6. Cary Belen, D.O.Tucson, AZ 857121982885323
  7. Vincent Campion, MDTucson, AZ 857121578096137
  8. Teh-Li Huo, MDTucson, AZ 857121467458919

Common questions

What is Purba Biswas, MD's NPI number?

Purba Biswas, MD's National Provider Identifier (NPI) is 1740274190, issued on Aug 31, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Purba Biswas, MD located?

The NPPES record lists a practice address at 1840 Paseo San Luis, Sierra Vista, AZ, 85635. Phone: (520) 459-5959. Providers update this record themselves, so call before visiting.

How can I verify Purba Biswas, MD's license?

NPPES lists Arizona license number 34448, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Purba Biswas, MD prescribe under Medicare Part D?

In 2024, Purba Biswas, MD had 3,270 Medicare Part D claims for 257 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.

What is Purba Biswas, MD's MIPS final score?

The 2023 MIPS final score is 54.6 of 100. 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.