NPI registry status
Active
2026 NPPES data Nephrology Physician NPI 1689864449 MD
Verify on CMS → Sujan Pathak, MD
Nephrology Physician in Rapid City, South Dakota.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 10,806 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
2K
Medicare Part D claims · 368 beneficiaries · Nephrology Physician avg: 2K
Industry payments
$1.0K
51 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Sujan Pathak, MD filed 2,362 Medicare Part D claims in 2024 as a Nephrology Physician in Rapid City, South Dakota.
- 2K
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥86th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Sujan Pathak, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1689864449), first enumerated 07/27/2007.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 2,362 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$1.0K in reported industry payments (51 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1689864449 · Nephrology Physician
NPI-10 · ENUM-MID · TAX-MID · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1689864449
- ENUM-MID 2007
- TAX-MID 11K Nephrology Physician
- RX-MID 2,362
- BOOK-THIN 23 in South Dakota
- PHOTO-ENUM Paru Kathpalia, MD · 2007
Sujan Pathak, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
2,362 ≥ 86th percentile 86% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
Sujan Pathak, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 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 Sujan Pathak, MD?
Quality data not reportedPrimary specialty
Nephrology Physician
Medicare Part D claims
2,362 56% vs specialty avg
Specialty distribution in South Dakota
How Nephrology Physician compares to other specialties among South Dakota 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).
Practice Address
Provider Details
| NPI | 1689864449 |
|---|---|
| Specialty | Nephrology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 07/27/2007 |
Hospital and facility affiliations
Facilities where Sujan Pathak, MD 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.
Integris Ambulatory Care Corporation
Oklahoma City, OK
Kidney Specialists OF Central Oklahoma, PC
Oklahoma City, OK
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 Sujan Pathak, MD. Source: openpaymentsdata.cms.gov.
Total received
$1.0K
Largest payer
Novartis Pharmaceuticals Corporation
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 2024.
2,362
Total Claims
$322K
Total Drug Cost
368
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,474.9
- Total Day Supply
- 132,187
- Generic Drug Cost
- $54K
- Antibiotic Claims
- 48
Patient Demographics
- Average Patient Age
- 73.8 years
- Avg HCC Risk Score
- 2.89
- Gender Split
- 55% female / 45% male
- Age Distribution
- <65: 44, 65-74: 129, 75-84: 154, 85+: 41
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Sujan Pathak, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Amlodipine Besylate
Amlodipine Besylate
184 claims
- Calcitriol
Calcitriol
172 claims
- Torsemide
Torsemide
170 claims
- Losartan Potassium
Losartan Potassium
148 claims
- Spironolactone
Spironolactone
113 claims
- Hydralazine Hcl
Hydralazine Hcl
112 claims
- Allopurinol
Allopurinol
104 claims
- Furosemide
Furosemide
102 claims
| Drug | Claims |
|---|---|
| Amlodipine Besylate | 184 |
| Calcitriol | 172 |
| Torsemide | 170 |
| Losartan Potassium | 148 |
| Spironolactone | 113 |
| Hydralazine Hcl | 112 |
| Allopurinol | 104 |
| Furosemide | 102 |
| Lisinopril | 100 |
| Farxiga Dapagliflozin Propanediol | 91 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nephrology Physician Overview
How Sujan Pathak, MD fits within the Nephrology Physician landscape nationally.
10,806
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,511
Avg Claims per Provider
Sujan Pathak, MD's 2,362 claims are above the specialty average of 1,511.
Nationwide Nephrology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Pathak, both outside South Dakota so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Nephrology Physician Providers in South Dakota
Other clinicians with the same primary specialty enrolled in South Dakota, drawn from the same CMS NPPES roster as Pathak.
One of 23 Nephrology Physician providers enrolled in South Dakota, 5 are shown here.
Dr. Jeremy Awori
MD
Sioux Falls, SD
Dr. Fredric Birch
MD
Rapid City, SD
Dr. Dana Brandys
D.O.
Sioux Falls, SD
Dr. Jennifer Fillaus
D.O.
Yankton, SD
Dr. Oleg Georgiev
MD
Sioux Falls, SD
Compare Nephrology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Sujan Pathak, MD's specialty? ▼
Sujan Pathak, MD specializes in Nephrology Physician and practices in Rapid City, South Dakota. Credentials: MD.
How much does Sujan Pathak, MD prescribe under Medicare Part D? ▼
In 2024, Sujan Pathak, MD wrote 2,362 Medicare Part D claims totaling $322K in drug costs for 368 beneficiaries.
Where is Sujan Pathak, MD located? ▼
Sujan Pathak, MD is located at 640 FLORMANN ST, Rapid City, SD, 57701. Phone: (605) 718-3300.
What is Sujan Pathak, MD's NPI number? ▼
Sujan Pathak, MD's National Provider Identifier (NPI) is 1689864449, issued on 07/27/2007.
How many Nephrology Physician providers are there in the US? ▼
There are 10,806 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,511 Medicare Part D claims per year.
What drugs does Sujan Pathak, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Sujan Pathak, MD's most frequently prescribed drugs include Amlodipine Besylate, Calcitriol, Torsemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sujan Pathak, MD accept Medicare? ▼
Sujan Pathak, MD appears in CMS Medicare data with 2,362 Part D claims and 368 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sujan Pathak, MD's credentials? ▼
Sujan Pathak, MD's NPI is 1689864449 with credentials MD. 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 (2024). 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 August 2026 (NPPES) / 2024 (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
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 August 2026.