2026 NPPES data Nephrology Physician NPI 1558743146
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Prince Singh

Nephrology Physician in Duluth, Minnesota.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 10,569 in Nephrology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
1K
Medicare Part D claims · 316 beneficiaries · Nephrology Physician avg: 1K
Industry payments
$148.1
2 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Prince Singh filed 1,398 Medicare Part D claims in 2023 as a Nephrology Physician in Duluth, Minnesota.

1K
Part D claims, 2023
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.

Prince Singh's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023, across all CMS prescribers nationally

1,398 Top 21% higher than 79% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). This entry sits in this band. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2K+: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic, not verified)

Prince Singh practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 5 hospital affiliations - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Prince Singh?

Quality data not reported

NPI registry status

Active

Issued 06/19/2015

NPI 1558743146

Primary specialty

Nephrology Physician

Mid-sized

10,569 US NPIs in this specialty

Medicare Part D claims

1,398 4% vs specialty avg

2023 prescription claims

Specialty avg: 1,454

Specialty distribution in Minnesota

How Nephrology Physician compares to other specialties among Minnesota providers

Minnesota providers
Behavior Technician - 11.7%Behavior Technician11.7%Clinical Social Worker - 4.7%Clinical Social Worker4.7%Physical Therapist - 4.1%Physical Therapist4.1%Pharmacist - 3.7%Pharmacist3.7%Student in an Organized Health Care Education/Training Program - 3.4%Student in an Organized Health Care Education/Training Program3.4%Mental Health Counselor - 3.1%Mental Health Counselor3.1%Nephrology Physician - 0.2%Nephrology Physician0.2%
Largest specialties in Minnesota (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Nephrology Physician. Verify directly:

How MIPS and board certification work

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

Prince Singh appears in the CMS NPPES registry as a Nephrology Physician provider at 1001 E SUPERIOR ST STE 201, Duluth, MN, 55802, with a listed phone of (218) 249-5555. NPI 1558743146 was issued on 06/19/2015.

Medicare Part D records for calendar year 2023 show 1,398 prescription claims written by this provider, covering 316 Medicare beneficiaries and totaling roughly $218K in drug spend.

Nephrology Physician is a mid-sized specialty nationwide, with 10,569 enrolled providers across 55 states and an average of 1,454 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.

Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1001 E SUPERIOR ST STE 201
Duluth, MN 55802

Provider Details

NPI 1558743146
Specialty Nephrology Physician
Gender Male
NPI Issued 06/19/2015

Hospital and facility affiliations

Facilities where Prince Singh bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

According to CMS billing records, Prince Singh is affiliated with 5 Medicare-billing facilities across 3 states.

Allina Health System
River Falls, WI
Mayo Clinic Health System-Southwest Wisconsin Region Inc
La Crosse, WI
Mchs Hospitals Inc
Marshfield, WI
North Iowa Mercy Clinics
Mason City, IA
Scotland Memorial Hospital, Inc
Laurinburg, NC

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) - CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Prince Singh. Source: openpaymentsdata.cms.gov.

Total received

$148

Largest payer

Baxter Healthcare

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

1,398
Total Claims
$218K
Total Drug Cost
316
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,747
Total Day Supply
80,326
Generic Drug Cost
$32K
Antibiotic Claims
16

Patient Demographics

Average Patient Age
73.3 years
Avg HCC Risk Score
2.87
Gender Split
51% female / 49% male
Age Distribution
<65: 47, 65-74: 120, 75-84: 118, 85+: 31

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Prince Singh prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Farxiga
Dapagliflozin Propanediol
139
Torsemide
138
Allopurinol
120
Lisinopril
110
Losartan Potassium
85
Furosemide
84
Amlodipine Besylate
80
Metoprolol Succinate
76
Spironolactone
46
Lokelma
Sodium Zirconium Cyclosilicate
37

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Nephrology Physician Overview

How Prince Singh fits within the Nephrology Physician landscape nationally.

10,569
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider

Prince Singh's 1,398 claims are below the specialty average of 1,454.

Nearby Nephrology Physician Providers in Minnesota

Other clinicians with the same primary specialty enrolled in Minnesota, drawn from the same CMS NPPES roster as Singh.

Compare Nephrology Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Minnesota medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Nephrology Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Prince Singh's specialty?
Prince Singh specializes in Nephrology Physician and practices in Duluth, Minnesota.
How much does Prince Singh prescribe under Medicare Part D?
In 2023, Prince Singh wrote 1,398 Medicare Part D claims totaling $218K in drug costs for 316 beneficiaries.
Where is Prince Singh located?
Prince Singh is located at 1001 E SUPERIOR ST STE 201, Duluth, MN, 55802. Phone: (218) 249-5555.
What is Prince Singh's NPI number?
Prince Singh's National Provider Identifier (NPI) is 1558743146, issued on 06/19/2015.
How many Nephrology Physician providers are there in the US?
There are 10,569 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,454 Medicare Part D claims per year.
What drugs does Prince Singh prescribe most often?
Based on 2023 Medicare Part D data, Prince Singh's most frequently prescribed drugs include Farxiga, Torsemide, Allopurinol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Prince Singh accept Medicare?
Prince Singh appears in CMS Medicare data with 1,398 Part D claims and 316 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Prince Singh's credentials?
Prince Singh's NPI is 1558743146. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

View source datasets and methodology notes
Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology

Compiled from official public sources by the PlainDoctor editorial team.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.