2026 NPPES data Family Medicine Physician NPI 1528354586 MD
Verify on CMS →

Cass Cortez, MD

Family Medicine Physician in Indianapolis, Indiana.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 150,125 in Family Medicine 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
8K
Medicare Part D claims · 623 beneficiaries · Family Medicine Physician avg: 4K

What the federal data shows

Cass Cortez, MD filed 7,561 Medicare Part D claims in 2024 as a Family Medicine Physician in Indianapolis, Indiana.

8K
Part D claims, 2024
Likely
board-certified (heuristic)
≥97th
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 Cass Cortez, 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 1528354586), first enumerated 06/28/2011.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 7,561 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.

    Source: NUCC taxonomy + CMS participation heuristic

  • Reported

    Hospital affiliations

    1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.

    Source: CMS Care Compare

  • 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 1528354586 · Family Medicine Physician

NPI-10 · ENUM-MID · TAX-MEGA · RX-MID · BOOK-LIGHT · PHOTO-ENUM

  • NPI-10 1528354586
  • ENUM-MID 2011
  • TAX-MEGA 150K Family Medicine
  • RX-MID 7,561
  • BOOK-LIGHT 3,367 in Indiana
  • PHOTO-ENUM Holly Clemons · 2011

Cass Cortez, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2024, across all CMS prescribers nationally

7,561 ≥ 97th percentile 97% of 1,416,883 prescribers are in lower value bands

0–200: 679,947 prescribers (48%). Below this entry. 200–400: 188,835 prescribers (13%). Below this entry. 400–600: 95,866 prescribers (7%). Below this entry. 600–800: 60,107 prescribers (4%). Below this entry. 800–1,000: 43,043 prescribers (3%). Below this entry. 1,000–1,200: 33,612 prescribers (2%). Below this entry. 1,200–1,400: 27,889 prescribers (2%). Below this entry. 1,400–1,600: 23,183 prescribers (2%). Below this entry. 1,600–1,800: 19,917 prescribers (1%). Below this entry. 1,800–2,000: 17,585 prescribers (1%). Below this entry. 2K+: 226,899 prescribers (16%). This entry sits in this band. 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.

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)

Cass Cortez, 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).

What does the federal data show about Cass Cortez, MD?

Quality data not reported

NPI registry status

Active

Issued 06/28/2011

NPI 1528354586

Primary specialty

Family Medicine Physician

High-volume

150,125 US NPIs in this specialty

Medicare Part D claims

7,561 115% vs specialty avg

2024 prescription claims

Specialty avg: 3,519

Specialty distribution in Indiana

How Family Medicine Physician compares to other specialties among Indiana providers

Indiana providers
Behavior Technician14.3%Student in an Organized Heal…4.8%Pharmacist4.3%Clinical Social Worker4.2%Family Nurse Practitioner4.2%Mental Health Counselor4.1%Family Medicine Physician2.8%
Largest specialties in Indiana (% 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 Family Medicine 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

8325 E SOUTHPORT RD STE 100
Indianapolis, IN 46259

Provider Details

NPI 1528354586
Specialty Family Medicine Physician
Credentials MD
Gender Male
NPI Issued 06/28/2011

Hospital and facility affiliations

Facilities where Cass Cortez, 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.

Franciscan Physician Network
Indianapolis, 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).

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2024.

7,561
Total Claims
$609K
Total Drug Cost
623
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
19,756.1
Total Day Supply
581,012
Generic Drug Cost
$96K
Opioid Claims
135 (1.8% rate)
Antibiotic Claims
167

Patient Demographics

Average Patient Age
73.3 years
Avg HCC Risk Score
1.22
Gender Split
47% female / 53% male
Age Distribution
<65: 47, 65-74: 304, 75-84: 199, 85+: 73

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

What Cass Cortez, MD prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Atorvastatin Calcium
609
Lisinopril
379
Amlodipine Besylate
343
Omeprazole
277
Levothyroxine Sodium
266
Losartan Potassium
210
Metformin Hcl
200
Rosuvastatin Calcium
181
Hydrochlorothiazide
176
Tamsulosin Hcl
154

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

Family Medicine Physician Overview

How Cass Cortez, MD fits within the Family Medicine Physician landscape nationally.

150,125
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,519
Avg Claims per Provider

Cass Cortez, MD's 7,561 claims are above the specialty average of 3,519.

Nationwide Family Medicine Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Cortez, both outside Indiana so the neighborhoods are not geographic containment.

Same NPPES enumeration year (2011)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Nearby Family Medicine Physician Providers in Indiana

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

One of 3,367 Family Medicine Physician providers enrolled in Indiana, 5 are shown here.

Compare Family Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Cass Cortez, MD's specialty?
Cass Cortez, MD specializes in Family Medicine Physician and practices in Indianapolis, Indiana. Credentials: MD.
How much does Cass Cortez, MD prescribe under Medicare Part D?
In 2024, Cass Cortez, MD wrote 7,561 Medicare Part D claims totaling $609K in drug costs for 623 beneficiaries.
Where is Cass Cortez, MD located?
Cass Cortez, MD is located at 8325 E SOUTHPORT RD STE 100, Indianapolis, IN, 46259. Phone: (317) 862-6609.
What is Cass Cortez, MD's NPI number?
Cass Cortez, MD's National Provider Identifier (NPI) is 1528354586, issued on 06/28/2011.
Does Cass Cortez, MD prescribe opioids?
Yes, Cass Cortez, MD had 135 opioid claims in 2024 with an opioid prescribing rate of 1.8%.
How many Family Medicine Physician providers are there in the US?
There are 150,125 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,519 Medicare Part D claims per year.
What drugs does Cass Cortez, MD prescribe most often?
Based on 2024 Medicare Part D data, Cass Cortez, MD's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Cass Cortez, MD accept Medicare?
Cass Cortez, MD appears in CMS Medicare data with 7,561 Part D claims and 623 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Cass Cortez, MD's credentials?
Cass Cortez, MD's NPI is 1528354586 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.