2026 NPPES data Nephrology Physician NPI 1922029958 MD
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SANTHI NIMMAGADDA, MD

Nephrology Physician in DEARBORN, Michigan. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
615
Medicare Part D claims · 148 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
82%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: SANTHI NIMMAGADDA, MD is a Nephrology Physician ([object Object]) practicing in DEARBORN, Michigan with a Medicare Part D prescribing footprint of 615 claims across 148 beneficiaries — 18% brand-name prescribing .

What stands out: SANTHI NIMMAGADDA, MD filed 615 Medicare Part D claims in 2023 across DEARBORN, Michigan. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

SANTHI NIMMAGADDA, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

SANTHI NIMMAGADDA, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 07/23/2006

NPI 1922029958

Primary specialty

Nephrology Physician

Mid-sized

10,534 US NPIs in this specialty

Medicare Part D claims

615 58% vs specialty avg

2023 prescription claims

Specialty avg: 1,454

Specialty distribution in Michigan

How Nephrology Physician compares to other specialties among Michigan providers

Michigan providers

Nephrology Physician share within Michigan

1. Nephrology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Nephrology Physician share within Michigan

Specialty board-certification context

Estimated specialty board-certified rate — Nephrology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Nephrology Physician ABMS/AOA estimate

Est. board-certified rate (Nephrology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Nephrology Physician) — ABMS / AOA estimate

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).

SANTHI NIMMAGADDA, MD is a Nephrology Physician provider practicing in DEARBORN, Michigan, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1922029958. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

SANTHI NIMMAGADDA, MD appears in the CMS NPPES registry as a Nephrology Physician provider holding MD credentials at 19001 HUBBARD DR, DEARBORN, MI, 48126, with a listed phone of (313) 441-1160. NPI 1922029958 was issued on 07/23/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what NIMMAGADDA most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 615 prescription claims written by this provider, covering 148 Medicare beneficiaries and totaling roughly $95K in drug spend, split 18% brand-name and 82% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Nephrology Physician is a mid-sized specialty nationwide, with 10,534 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

19001 HUBBARD DR
DEARBORN, MI 48126

Provider Details

NPI 1922029958
Specialty Nephrology Physician
Credentials MD
Gender Female
NPI Issued 07/23/2006

Hospital and facility affiliations

Facilities where SANTHI NIMMAGADDA, 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.

HENRY FORD HEALTH SYSTEM
DETROIT, MI

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

License & disciplinary context — Michigan MI-BOM 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~41K Michigan medical licensees in 2023 — they are NOT specific to SANTHI NIMMAGADDA, MD. To verify SANTHI NIMMAGADDA, MD's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases

MI-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

SANTHI NIMMAGADDA, MD — brand share 18.0%
Specialty average (est.)

18% brand-name claims vs 82% generic, on 615 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

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

615
Total Claims
$95K
Total Drug Cost
148
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,218
Total Day Supply
35,768
Brand vs Generic
18% brand / 82% generic
Brand Drug Cost
$78K
Generic Drug Cost
$17K

Patient Demographics

Average Patient Age
72.5 years
Avg HCC Risk Score
4.12
Gender Split
54% female / 46% male
Age Distribution
<65: 25, 65-74: 56, 75-84: 50, 85+: 17

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Amlodipine Besylate
66
Jardiance
Empagliflozin
50
Lisinopril
39
Nifedipine Er
Nifedipine
39
Farxiga
Dapagliflozin Propanediol
36
Calcium Acetate
35
Losartan Potassium
33
Vitamin D2
Ergocalciferol (Vitamin D2)
27
Hydralazine Hcl
23
Carvedilol
19

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

Nephrology Physician Overview

How SANTHI NIMMAGADDA, MD fits within the Nephrology Physician landscape nationally.

10,534
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider

SANTHI NIMMAGADDA, MD's 615 claims are below the specialty average of 1,454.

Nearby Nephrology Physician Providers in Michigan

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

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

Frequently Asked Questions

What is SANTHI NIMMAGADDA, MD's specialty?
SANTHI NIMMAGADDA, MD specializes in Nephrology Physician and practices in DEARBORN, Michigan. Credentials: MD.
How much does SANTHI NIMMAGADDA, MD prescribe under Medicare Part D?
In 2023, SANTHI NIMMAGADDA, MD wrote 615 Medicare Part D claims totaling $95K in drug costs for 148 beneficiaries.
Where is SANTHI NIMMAGADDA, MD located?
SANTHI NIMMAGADDA, MD is located at 19001 HUBBARD DR, DEARBORN, MI, 48126. Phone: (313) 441-1160.
What is SANTHI NIMMAGADDA, MD's NPI number?
SANTHI NIMMAGADDA, MD's National Provider Identifier (NPI) is 1922029958, issued on 07/23/2006.
Does SANTHI NIMMAGADDA, MD prescribe more brand-name or generic drugs?
SANTHI NIMMAGADDA, MD's prescribing is 18% brand-name and 82% generic drugs by claim count, with $78K in brand drug costs.
How many Nephrology Physician providers are there in the US?
There are 10,534 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 SANTHI NIMMAGADDA, MD prescribe most often?
Based on 2023 Medicare Part D data, SANTHI NIMMAGADDA, MD's most frequently prescribed drugs include Amlodipine Besylate, Jardiance, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SANTHI NIMMAGADDA, MD accept Medicare?
SANTHI NIMMAGADDA, MD appears in CMS Medicare data with 615 Part D claims and 148 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SANTHI NIMMAGADDA, MD's credentials?
SANTHI NIMMAGADDA, MD's NPI is 1922029958 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

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