2026 NPPES data Orthopaedic Surgery Physician NPI 1104892991 MD
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Ralph Katz, MD

Orthopaedic Surgery Physician in Marrero, Louisiana. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 25,781 in Orthopaedic Surgery 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
992
Medicare Part D claims · 197 beneficiaries · Orthopaedic Surgery Physician avg: 324
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Ralph Katz, MD filed 992 Medicare Part D claims in 2023 as a Orthopaedic Surgery Physician in Marrero, Louisiana.

992
Part D claims, 2023

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.

Ralph Katz, MD's Medicare Part D volume vs every U.S. prescriber

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

992 Top 25% higher than 75% 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%). This entry sits in this band. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 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-eligible specialty (heuristic, not verified)

Ralph Katz, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Ralph Katz, MD?

Quality data not reported

NPI registry status

Active

Issued 02/23/2006

NPI 1104892991

Primary specialty

Orthopaedic Surgery Physician

Mid-sized

25,781 US NPIs in this specialty

Medicare Part D claims

992 206% vs specialty avg

2023 prescription claims

Specialty avg: 324

Specialty distribution in Louisiana

How Orthopaedic Surgery Physician compares to other specialties among Louisiana providers

Louisiana providers

Largest specialties in Louisiana (% of in-state providers)

Case Manager/Care Coordinator - 9.6%Case Manager/Care Coordinator9.6%Mental Health Counselor - 7.3%Mental Health Counselor7.3%Behavior Technician - 5.3%Behavior Technician5.3%Pharmacist - 5.2%Pharmacist5.2%Student in an Organized Health Care Education/Training Program - 5%Student in an Organized Health Care Education/Training Program5%Family Nurse Practitioner - 4.6%Family Nurse Practitioner4.6%Orthopaedic Surgery Physician - 0.4%Orthopaedic Surgery Physician0.4%
Largest specialties in Louisiana (% 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 Orthopaedic Surgery Physician. Verify directly:

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).

Ralph Katz, MD appears in the CMS NPPES registry as a Orthopaedic Surgery Physician provider holding MD credentials at 1301 BARATARIA BLVD, Marrero, LA, 70072, with a listed phone of (504) 347-0243. NPI 1104892991 was issued on 02/23/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Katz 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 992 prescription claims written by this provider, covering 197 Medicare beneficiaries and totaling roughly $6K in drug spend, with an opioid prescribing rate of 24.1%. 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.

Orthopaedic Surgery Physician is a mid-sized specialty nationwide, with 25,781 enrolled providers across 56 states and an average of 324 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

1301 BARATARIA BLVD
Marrero, LA 70072

Provider Details

NPI 1104892991
Specialty Orthopaedic Surgery Physician
Credentials MD
Gender Male
NPI Issued 02/23/2006

Medicare Part D Prescribing Data

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

992
Total Claims
$6K
Total Drug Cost
197
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,232
Total Day Supply
29,216
Generic Drug Cost
$6K
Opioid Claims
239 (24.1% rate)
Antibiotic Claims
26

Patient Demographics

Average Patient Age
71.0 years
Avg HCC Risk Score
1.13
Gender Split
60% female / 40% male

Top Prescribed Drugs (Medicare Part D)

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

What Ralph Katz, MD 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
Meloxicam
195
Gabapentin
149
Tramadol Hcl
122
Methylprednisolone
91
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
89
Tizanidine Hcl
81
Naproxen
43
Diazepam
28
Celecoxib
23
Acetaminophen-Codeine
Acetaminophen With Codeine
20

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

Orthopaedic Surgery Physician Overview

How Ralph Katz, MD fits within the Orthopaedic Surgery Physician landscape nationally.

25,781
Orthopaedic Surgery Physician Providers in US
56
States with Orthopaedic Surgery Physician
324
Avg Claims per Provider

Ralph Katz, MD's 992 claims are above the specialty average of 324.

Nearby Orthopaedic Surgery Physician Providers in Louisiana

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

Compare Orthopaedic Surgery 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 Louisiana medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Orthopaedic Surgery 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 Ralph Katz, MD's specialty?
Ralph Katz, MD specializes in Orthopaedic Surgery Physician and practices in Marrero, Louisiana. Credentials: MD.
How much does Ralph Katz, MD prescribe under Medicare Part D?
In 2023, Ralph Katz, MD wrote 992 Medicare Part D claims totaling $6K in drug costs for 197 beneficiaries.
Where is Ralph Katz, MD located?
Ralph Katz, MD is located at 1301 BARATARIA BLVD, Marrero, LA, 70072. Phone: (504) 347-0243.
What is Ralph Katz, MD's NPI number?
Ralph Katz, MD's National Provider Identifier (NPI) is 1104892991, issued on 02/23/2006.
Does Ralph Katz, MD prescribe opioids?
Yes, Ralph Katz, MD had 239 opioid claims in 2023 with an opioid prescribing rate of 24.1%.
How many Orthopaedic Surgery Physician providers are there in the US?
There are 25,781 Orthopaedic Surgery Physician providers across 56 states in the US. The average Orthopaedic Surgery Physician provider writes 324 Medicare Part D claims per year.
What drugs does Ralph Katz, MD prescribe most often?
Based on 2023 Medicare Part D data, Ralph Katz, MD's most frequently prescribed drugs include Meloxicam, Gabapentin, Tramadol Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ralph Katz, MD accept Medicare?
Ralph Katz, MD appears in CMS Medicare data with 992 Part D claims and 197 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ralph Katz, MD's credentials?
Ralph Katz, MD's NPI is 1104892991 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

Compiled from official public sources by the PlainDoctor editorial team.