2026 NPPES data Nephrology Physician NPI 1811187818 MD
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DANIEL ANZALDUA, MD

Nephrology Physician in CARMEL, Indiana. 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
2K
Medicare Part D claims · 61 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
80%
generic claims · 20% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: DANIEL ANZALDUA, MD is a Nephrology Physician ([object Object]) practicing in CARMEL, Indiana with a Medicare Part D prescribing footprint of 2K claims across 61 beneficiaries — 20% brand-name prescribing .

What stands out: DANIEL ANZALDUA, MD filed 1,668 Medicare Part D claims in 2023 across CARMEL, Indiana. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

DANIEL ANZALDUA, 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).

DANIEL ANZALDUA, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 07/26/2007

NPI 1811187818

Primary specialty

Nephrology Physician

Mid-sized

10,534 US NPIs in this specialty

Medicare Part D claims

1,668 15% vs specialty avg

2023 prescription claims

Specialty avg: 1,454

Specialty distribution in Indiana

How Nephrology Physician compares to other specialties among Indiana providers

Indiana providers

Nephrology Physician share within Indiana

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

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).

DANIEL ANZALDUA, MD is a Nephrology Physician provider practicing in CARMEL, Indiana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1811187818. 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.

DANIEL ANZALDUA, MD appears in the CMS NPPES registry as a Nephrology Physician provider holding MD credentials at 484 E CARMEL DR STE 309, CARMEL, IN, 46032, with a listed phone of (317) 660-1379. NPI 1811187818 was issued on 07/26/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ANZALDUA 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 1,668 prescription claims written by this provider, covering 61 Medicare beneficiaries and totaling roughly $134K in drug spend, split 20% brand-name and 80% generic by claim count, with an opioid prescribing rate of 2.4%. 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

484 E CARMEL DR STE 309
CARMEL, IN 46032

Provider Details

NPI 1811187818
Specialty Nephrology Physician
Credentials MD
Gender Male
NPI Issued 07/26/2007

Hospital and facility affiliations

Facilities where DANIEL ANZALDUA, 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.

HAMILTON MEDICAL CONSULTANTS LLC
INDIANAPOLIS, IN
STATE OF INDIANA AUDITOR OF STATE
WEST LAFAYETTE, IN

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

Brand vs generic prescribing mix · Typical

DANIEL ANZALDUA, MD — brand share 20.0%
Specialty average (est.)

20% brand-name claims vs 80% generic, on 1,668 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.

1,668
Total Claims
$134K
Total Drug Cost
61
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,692
Total Day Supply
44,924
Brand vs Generic
20% brand / 80% generic
Brand Drug Cost
$97K
Generic Drug Cost
$35K
Opioid Claims
40 (2.4% rate)
Antibiotic Claims
17

Patient Demographics

Average Patient Age
83.7 years
Avg HCC Risk Score
1.94
Gender Split
64% female / 36% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
112
Levothyroxine Sodium
93
Eliquis
Apixaban
87
Gabapentin
66
Amlodipine Besylate
54
Pantoprazole Sodium
49
Lisinopril
47
Xarelto
Rivaroxaban
44
Metoprolol Succinate
43
Furosemide
42

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

Nephrology Physician Overview

How DANIEL ANZALDUA, 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

DANIEL ANZALDUA, MD's 1,668 claims are above the specialty average of 1,454.

Nearby Nephrology Physician Providers in Indiana

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

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

Frequently Asked Questions

What is DANIEL ANZALDUA, MD's specialty?
DANIEL ANZALDUA, MD specializes in Nephrology Physician and practices in CARMEL, Indiana. Credentials: MD.
How much does DANIEL ANZALDUA, MD prescribe under Medicare Part D?
In 2023, DANIEL ANZALDUA, MD wrote 1,668 Medicare Part D claims totaling $134K in drug costs for 61 beneficiaries.
Where is DANIEL ANZALDUA, MD located?
DANIEL ANZALDUA, MD is located at 484 E CARMEL DR STE 309, CARMEL, IN, 46032. Phone: (317) 660-1379.
What is DANIEL ANZALDUA, MD's NPI number?
DANIEL ANZALDUA, MD's National Provider Identifier (NPI) is 1811187818, issued on 07/26/2007.
Does DANIEL ANZALDUA, MD prescribe more brand-name or generic drugs?
DANIEL ANZALDUA, MD's prescribing is 20% brand-name and 80% generic drugs by claim count, with $97K in brand drug costs.
Does DANIEL ANZALDUA, MD prescribe opioids?
Yes, DANIEL ANZALDUA, MD had 40 opioid claims in 2023 with an opioid prescribing rate of 2.4%.
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 DANIEL ANZALDUA, MD prescribe most often?
Based on 2023 Medicare Part D data, DANIEL ANZALDUA, MD's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DANIEL ANZALDUA, MD accept Medicare?
DANIEL ANZALDUA, MD appears in CMS Medicare data with 1,668 Part D claims and 61 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DANIEL ANZALDUA, MD's credentials?
DANIEL ANZALDUA, MD's NPI is 1811187818 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