2026 NPPES data Urology Physician NPI 1457388639 M.D.
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Robert Grissom, M.D.

Urology Physician in Baton Rouge, 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 13,350 in Urology 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
3K
Medicare Part D claims · 431 beneficiaries · Urology Physician avg: 1K
MIPS score
61.7/100
▼ 21 pts below national avg 83.1 · Mid-tier
Industry payments
$28.26
1 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Robert Grissom, M.D. reported a CMS MIPS final score of 61.7/100 - below the 83.1 national average - and filed 2,684 Medicare Part D claims in 2023.

61.7/100
MIPS score · -21 vs avg
3K
Part D claims, 2023
Likely
board-certified (heuristic)

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 Grissom, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure

62 6th percentile higher than 6% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). This entry sits in this band. 70–80: 118,074 scored providers (25%). Above this entry. 80–90: 129,887 scored providers (27%). Above this entry. 90+: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Where Robert Grissom, M.D. sits

This provider among urology physician peers

Across the 4,623 urology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Robert Grissom, M.D. writes more Part D claims than 83% of them and scores higher on MIPS quality than 6% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 2Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 40Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 93Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 37Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 87Robert Grissom, M.D.-Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 6
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one urology physician peer from a representative sample of 60; the gold marker is Robert Grissom, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic, not verified)

Robert Grissom, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Robert Grissom, M.D.?

Below national average

NPI registry status

Active

Issued 06/26/2006

NPI 1457388639

Primary specialty

Urology Physician

Mid-sized

13,350 US NPIs in this specialty

Medicare Part D claims

2,684 110% vs specialty avg

2023 prescription claims

Specialty avg: 1,280

MIPS final score

61.7/100 21.4 pts vs avg

Mid-tier band

vs 83.1 national avg

Specialty distribution in Louisiana

How Urology 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%Urology Physician - 0.2%Urology Physician0.2%
Largest specialties in Louisiana (% of in-state providers)

Medicare quality performance, MIPS

Robert Grissom, M.D.'s 2023 MIPS final score plotted against the Urology Physician national average

Below national average
MIPS Final Score
61.7/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Urology Physician) - 61.7/100 vs national avg 83.1

0%100%National avg83%61.7%
MIPS final score (Urology Physician) - 61.7/100 vs national avg 83.1

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 Grissom, M.D. appears in the CMS NPPES registry as a Urology Physician provider holding M.D. credentials at 8080 BLUEBONNET BLVD, Baton Rouge, LA, 70810, with a listed phone of (225) 766-8100. NPI 1457388639 was issued on 06/26/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Grissom 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 2,684 prescription claims written by this provider, covering 431 Medicare beneficiaries and totaling roughly $161K in drug spend, with an opioid prescribing rate of 0.7%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 61.7/100 for the 2023 performance year (Quality 45.9, Cost 44.4), compared with the national average of 83.1.

Urology Physician is a mid-sized specialty nationwide, with 13,350 enrolled providers across 54 states and an average of 1,280 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

8080 BLUEBONNET BLVD
Baton Rouge, LA 70810

Provider Details

NPI 1457388639
Specialty Urology Physician
Credentials M.D.
Gender Male
NPI Issued 06/26/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

61.6862
Final Score
Avg: 83.1
45.9345
Quality
44.3747
Cost

Reporting: Group practice

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 Robert Grissom, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$28

Largest payer

Astellas Pharma US 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.

Medicare Part D Prescribing Data

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

2,684
Total Claims
$161K
Total Drug Cost
431
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,119
Total Day Supply
115,269
Generic Drug Cost
$49K
Opioid Claims
19 (0.7% rate)
Antibiotic Claims
963

Patient Demographics

Average Patient Age
76.2 years
Avg HCC Risk Score
1.35
Gender Split
27% female / 73% male
Age Distribution
<65: 18, 65-74: 179, 75-84: 161, 85+: 73

Top Prescribed Drugs (Medicare Part D)

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

What Robert Grissom, M.D. 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
Tamsulosin Hcl
710
Finasteride
317
Ciprofloxacin Hcl
305
Myrbetriq
Mirabegron
126
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
120
Nitrofurantoin
Nitrofurantoin Macrocrystal
107
Fluconazole
100
Levofloxacin
76
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
69
Cephalexin
64

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

Urology Physician Overview

How Robert Grissom, M.D. fits within the Urology Physician landscape nationally.

13,350
Urology Physician Providers in US
54
States with Urology Physician
1,280
Avg Claims per Provider

Robert Grissom, M.D.'s 2,684 claims are above the specialty average of 1,280.

Nearby Urology Physician Providers in Louisiana

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

Compare Urology 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 Urology 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 Robert Grissom, M.D.'s specialty?
Robert Grissom, M.D. specializes in Urology Physician and practices in Baton Rouge, Louisiana. Credentials: M.D..
How much does Robert Grissom, M.D. prescribe under Medicare Part D?
In 2023, Robert Grissom, M.D. wrote 2,684 Medicare Part D claims totaling $161K in drug costs for 431 beneficiaries.
What is Robert Grissom, M.D.'s Medicare quality score?
Robert Grissom, M.D. has a CMS MIPS Final Score of 61.7/100 (Quality: 45.9, Cost: 44.4). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Robert Grissom, M.D. located?
Robert Grissom, M.D. is located at 8080 BLUEBONNET BLVD, Baton Rouge, LA, 70810. Phone: (225) 766-8100.
What is Robert Grissom, M.D.'s NPI number?
Robert Grissom, M.D.'s National Provider Identifier (NPI) is 1457388639, issued on 06/26/2006.
Does Robert Grissom, M.D. prescribe opioids?
Yes, Robert Grissom, M.D. had 19 opioid claims in 2023 with an opioid prescribing rate of 0.7%.
How many Urology Physician providers are there in the US?
There are 13,350 Urology Physician providers across 54 states in the US. The average Urology Physician provider writes 1,280 Medicare Part D claims per year.
What drugs does Robert Grissom, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Robert Grissom, M.D.'s most frequently prescribed drugs include Tamsulosin Hcl, Finasteride, Ciprofloxacin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Robert Grissom, M.D. accept Medicare?
Robert Grissom, M.D. appears in CMS Medicare data with 2,684 Part D claims and 431 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Robert Grissom, M.D.'s credentials?
Robert Grissom, M.D.'s NPI is 1457388639 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
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.