2026 NPPES data Specialist NPI 1639255995 M.D.
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JOSHUA MAMMEN, M.D.

Specialist in CROWLEY, 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
32
Medicare Part D claims · Specialist avg: 1K

What the federal data shows

JOSHUA MAMMEN, M.D. filed 32 Medicare Part D claims in 2023 as a Specialist in CROWLEY, Louisiana.

32
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.

JOSHUA MAMMEN, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

32 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 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. 2,000–2,200: 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

What does the federal data show about JOSHUA MAMMEN, M.D.?

Quality data not reported

NPI registry status

Active

Issued 10/30/2006

NPI 1639255995

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

32 98% 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).

JOSHUA MAMMEN, M.D. appears in the CMS NPPES registry as a Specialist provider holding M.D. credentials at 713 NORTH EASTERN AVE., CROWLEY, LA, 70526, with a listed phone of (337) 788-2216. NPI 1639255995 was issued on 10/30/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MAMMEN 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 32 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $660 in drug spend. 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

713 NORTH EASTERN AVE.
CROWLEY, LA 70526

Provider Details

NPI 1639255995
Specialty Specialist
Credentials M.D.
Gender Male
NPI Issued 10/30/2006

Medicare Part D Prescribing Data

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

32
Total Claims
$660
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
88
Total Day Supply
2,640
Brand Drug Cost
$0
Generic Drug Cost
$660

Patient Demographics

Average Patient Age
73.3 years
Avg HCC Risk Score
1.90

Specialist Overview

How JOSHUA MAMMEN, M.D. fits within the Specialist landscape nationally.

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

JOSHUA MAMMEN, M.D.'s 32 claims are below 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 MAMMEN.

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

Frequently Asked Questions

What is JOSHUA MAMMEN, M.D.'s specialty?
JOSHUA MAMMEN, M.D. specializes in Specialist and practices in CROWLEY, Louisiana. Credentials: M.D..
How much does JOSHUA MAMMEN, M.D. prescribe under Medicare Part D?
In 2023, JOSHUA MAMMEN, M.D. wrote 32 Medicare Part D claims totaling $660 in drug costs for N/A beneficiaries.
Where is JOSHUA MAMMEN, M.D. located?
JOSHUA MAMMEN, M.D. is located at 713 NORTH EASTERN AVE., CROWLEY, LA, 70526. Phone: (337) 788-2216.
What is JOSHUA MAMMEN, M.D.'s NPI number?
JOSHUA MAMMEN, M.D.'s National Provider Identifier (NPI) is 1639255995, issued on 10/30/2006.
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.
Does JOSHUA MAMMEN, M.D. accept Medicare?
JOSHUA MAMMEN, M.D. appears in CMS Medicare data with 32 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOSHUA MAMMEN, M.D.'s credentials?
JOSHUA MAMMEN, M.D.'s NPI is 1639255995 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