2026 NPPES data Medical Physician Assistant NPI 1558320440 P.A.
Verify on CMS →

ROBERT FILLMAN, P.A.

Medical Physician Assistant in BATON ROUGE, 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
640
Medicare Part D claims · 322 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
97%
generic claims · 3% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ROBERT FILLMAN, P.A. filed 640 Medicare Part D claims in 2023 as a Medical Physician Assistant in BATON ROUGE, Louisiana, prescribing 97% generic.

640
Part D claims, 2023
97%
generic prescribing

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.

ROBERT FILLMAN, P.A.'s Medicare Part D volume vs every U.S. prescriber

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

640 Top 31% higher than 69% 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%). This entry sits in this band. 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 ROBERT FILLMAN, P.A.?

Quality data not reported

NPI registry status

Active

Issued 03/21/2006

NPI 1558320440

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

640 41% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in Louisiana

How Medical Physician Assistant compares to other specialties among Louisiana providers

Louisiana providers

Medical Physician Assistant share within Louisiana

1. Medical Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Medical Physician Assistant share within Louisiana

Specialty board-certification context

Estimated specialty board-certified rate — Medical Physician Assistant (ABMS / AOA reference)

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

Est. board-certified rate (Medical Physician Assistant) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Medical Physician Assistant) — 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).

ROBERT FILLMAN, P.A. appears in the CMS NPPES registry as a Medical Physician Assistant provider holding P.A. credentials at 10423 OLD HAMMOND HWY, BATON ROUGE, LA, 70816, with a listed phone of (225) 923-0960. NPI 1558320440 was issued on 03/21/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FILLMAN 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 640 prescription claims written by this provider, covering 322 Medicare beneficiaries and totaling roughly $8K in drug spend, split 3% brand-name and 97% generic by claim count, with an opioid prescribing rate of 8.1%. 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.

Medical Physician Assistant is a mid-sized specialty nationwide, with 40,527 enrolled providers across 55 states and an average of 1,077 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

10423 OLD HAMMOND HWY
BATON ROUGE, LA 70816

Provider Details

NPI 1558320440
Specialty Medical Physician Assistant
Credentials P.A.
Gender Male
NPI Issued 03/21/2006

Hospital and facility affiliations

Facilities where ROBERT FILLMAN, P.A. 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.

CONVENIENT CARE LLC
BATON ROUGE, LA
LOURDES AFTER HOURS LLC
BREAUX BRIDGE, LA

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 · Generic-heavy

ROBERT FILLMAN, P.A. — brand share 3.0%
Specialty average (est.)

3% brand-name claims vs 97% generic, on 640 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.

640
Total Claims
$8K
Total Drug Cost
322
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
641
Total Day Supply
4,873
Brand vs Generic
3% brand / 97% generic
Brand Drug Cost
$4K
Generic Drug Cost
$3K
Opioid Claims
52 (8.1% rate)
Antibiotic Claims
231

Patient Demographics

Average Patient Age
69.0 years
Avg HCC Risk Score
1.20
Gender Split
65% female / 35% male
Age Distribution
<65: 67, 65-74: 169, 75-84: 75, 85+: 11

Top Prescribed Drugs (Medicare Part D)

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

What ROBERT FILLMAN, P.A. 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
Prednisone
237
Azithromycin
83
Amoxicillin
54
Tramadol Hcl
47
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
30
Clindamycin Hcl
23
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
18
Paxlovid (Eua)
Nirmatrelvir/Ritonavir
16

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

Medical Physician Assistant Overview

How ROBERT FILLMAN, P.A. fits within the Medical Physician Assistant landscape nationally.

40,527
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,077
Avg Claims per Provider

ROBERT FILLMAN, P.A.'s 640 claims are below the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in Louisiana

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

Compare Medical Physician Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is ROBERT FILLMAN, P.A.'s specialty?
ROBERT FILLMAN, P.A. specializes in Medical Physician Assistant and practices in BATON ROUGE, Louisiana. Credentials: P.A..
How much does ROBERT FILLMAN, P.A. prescribe under Medicare Part D?
In 2023, ROBERT FILLMAN, P.A. wrote 640 Medicare Part D claims totaling $8K in drug costs for 322 beneficiaries.
Where is ROBERT FILLMAN, P.A. located?
ROBERT FILLMAN, P.A. is located at 10423 OLD HAMMOND HWY, BATON ROUGE, LA, 70816. Phone: (225) 923-0960.
What is ROBERT FILLMAN, P.A.'s NPI number?
ROBERT FILLMAN, P.A.'s National Provider Identifier (NPI) is 1558320440, issued on 03/21/2006.
Does ROBERT FILLMAN, P.A. prescribe more brand-name or generic drugs?
ROBERT FILLMAN, P.A.'s prescribing is 3% brand-name and 97% generic drugs by claim count, with $4K in brand drug costs.
Does ROBERT FILLMAN, P.A. prescribe opioids?
Yes, ROBERT FILLMAN, P.A. had 52 opioid claims in 2023 with an opioid prescribing rate of 8.1%.
How many Medical Physician Assistant providers are there in the US?
There are 40,527 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,077 Medicare Part D claims per year.
What drugs does ROBERT FILLMAN, P.A. prescribe most often?
Based on 2023 Medicare Part D data, ROBERT FILLMAN, P.A.'s most frequently prescribed drugs include Prednisone, Azithromycin, Amoxicillin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ROBERT FILLMAN, P.A. accept Medicare?
ROBERT FILLMAN, P.A. appears in CMS Medicare data with 640 Part D claims and 322 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ROBERT FILLMAN, P.A.'s credentials?
ROBERT FILLMAN, P.A.'s NPI is 1558320440 with credentials P.A.. 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