2026 NPPES data Specialist NPI 1194894493 M.D.
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NATHAN FISCHMAN, M.D.

Specialist in METAIRIE, Louisiana. 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 · 421 beneficiaries · Specialist avg: 1K
Generic prescribing
81%
generic claims · 19% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$51.3
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

NATHAN FISCHMAN, M.D. filed 2,495 Medicare Part D claims in 2023 as a Specialist in METAIRIE, Louisiana, prescribing 81% generic.

2K
Part D claims, 2023
81%
generic prescribing
$51.3
industry payments (Sunshine Act)

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.

NATHAN FISCHMAN, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

2,495 Top 14% higher than 86% 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%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 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.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about NATHAN FISCHMAN, M.D.?

Quality data not reported

NPI registry status

Active

Issued 11/08/2006

NPI 1194894493

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

2,495 69% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

Specialty distribution in Louisiana

How Specialist compares to other specialties among Louisiana providers

Louisiana providers

Specialist share within Louisiana

1. Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Specialist share within Louisiana

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Specialist) — 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).

NATHAN FISCHMAN, M.D. is a Specialist provider practicing in METAIRIE, Louisiana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1194894493. 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.

NATHAN FISCHMAN, M.D. appears in the CMS NPPES registry as a Specialist provider holding M.D. credentials at 3901 HOUMA BLVD STE 400, METAIRIE, LA, 70006, with a listed phone of (504) 780-2800. NPI 1194894493 was issued on 11/08/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FISCHMAN 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 2,495 prescription claims written by this provider, covering 421 Medicare beneficiaries and totaling roughly $481K in drug spend, split 19% brand-name and 81% generic by claim count, with an opioid prescribing rate of 0.9%. 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.

Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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

3901 HOUMA BLVD STE 400
METAIRIE, LA 70006

Provider Details

NPI 1194894493
Specialty Specialist
Credentials M.D.
Gender Male
NPI Issued 11/08/2006

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 NATHAN FISCHMAN, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$51

Largest payer

PFIZER INC.

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.

Brand vs generic prescribing mix · Typical

NATHAN FISCHMAN, M.D. — brand share 19.0%
Specialty average (est.)

19% brand-name claims vs 81% generic, on 2,495 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.

2,495
Total Claims
$481K
Total Drug Cost
421
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
5,132
Total Day Supply
143,906
Brand vs Generic
19% brand / 81% generic
Brand Drug Cost
$432K
Generic Drug Cost
$49K
Opioid Claims
22 (0.9% rate)
Antibiotic Claims
494

Patient Demographics

Average Patient Age
77.2 years
Avg HCC Risk Score
1.73
Gender Split
20% female / 80% male
Age Distribution
<65: 17, 65-74: 153, 75-84: 165, 85+: 86

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Tamsulosin Hcl
630
Finasteride
402
Myrbetriq
Mirabegron
246
Trimethoprim
152
Oxybutynin Chloride Er
Oxybutynin Chloride
140
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
90
Methenamine Hippurate
67
Alfuzosin Hcl Er
Alfuzosin Hcl
63
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
62
Levofloxacin
58

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

Specialist Overview

How NATHAN FISCHMAN, M.D. fits within the Specialist landscape nationally.

69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

NATHAN FISCHMAN, M.D.'s 2,495 claims are above the specialty average of 1,474.

Nearby Specialist Providers in Louisiana

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

Compare Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is NATHAN FISCHMAN, M.D.'s specialty?
NATHAN FISCHMAN, M.D. specializes in Specialist and practices in METAIRIE, Louisiana. Credentials: M.D..
How much does NATHAN FISCHMAN, M.D. prescribe under Medicare Part D?
In 2023, NATHAN FISCHMAN, M.D. wrote 2,495 Medicare Part D claims totaling $481K in drug costs for 421 beneficiaries.
Where is NATHAN FISCHMAN, M.D. located?
NATHAN FISCHMAN, M.D. is located at 3901 HOUMA BLVD STE 400, METAIRIE, LA, 70006. Phone: (504) 780-2800.
What is NATHAN FISCHMAN, M.D.'s NPI number?
NATHAN FISCHMAN, M.D.'s National Provider Identifier (NPI) is 1194894493, issued on 11/08/2006.
Does NATHAN FISCHMAN, M.D. prescribe more brand-name or generic drugs?
NATHAN FISCHMAN, M.D.'s prescribing is 19% brand-name and 81% generic drugs by claim count, with $432K in brand drug costs.
Does NATHAN FISCHMAN, M.D. prescribe opioids?
Yes, NATHAN FISCHMAN, M.D. had 22 opioid claims in 2023 with an opioid prescribing rate of 0.9%.
How many Specialist providers are there in the US?
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does NATHAN FISCHMAN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, NATHAN FISCHMAN, M.D.'s most frequently prescribed drugs include Tamsulosin Hcl, Finasteride, Myrbetriq. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NATHAN FISCHMAN, M.D. accept Medicare?
NATHAN FISCHMAN, M.D. appears in CMS Medicare data with 2,495 Part D claims and 421 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NATHAN FISCHMAN, M.D.'s credentials?
NATHAN FISCHMAN, M.D.'s NPI is 1194894493 with credentials M.D.. 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