PlainDoctor

2026 NPPES data Family Medicine Physician NPI 1083613210 D.O.
Verify on CMS →

Mal Riddell, D.O.

Family Medicine Physician in Grenada, Mississippi.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 150,125 in Family Medicine 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
603
Medicare Part D claims · 201 beneficiaries · Family Medicine Physician avg: 4K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
69.8/100
▼ 14 pts below national avg 83.5 · Mid-tier
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Mal Riddell, D.O. reported a CMS MIPS final score of 69.8/100 - below the 83.5 national average - and filed 603 Medicare Part D claims in 2024.

69.8/100
MIPS score · -14 vs avg
603
Part D claims, 2024
91%
generic prescribing
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.

Federal trust snapshot

What official records show about Mal Riddell, D.O.

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1083613210), first enumerated 07/19/2005.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 603 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 69.8/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Board certification signal

    Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.

    Source: NUCC taxonomy + CMS participation heuristic

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

Compare Riddell with other Family Medicine Physician providers

Same primary specialty, same federal CMS NPPES roster.

All 9 Family Medicine Physician providers in Grenada, MS →

Also enrolled in Mississippi

Other specialties in Grenada: Family Nurse Practitioner (36) · Pharmacist (17) · Physical Therapist (10) · Speech-Language Pathologist (8)

CMS NPPES provider registry desk

NPI 1083613210 · Family Medicine Physician

NPI-10 · ENUM-LEGACY · TAX-MEGA · MIPS-LOW · RX-LIGHT · BOOK-LIGHT · PHOTO-FINISH

  • NPI-10 1083613210
  • ENUM-LEGACY 2005
  • TAX-MEGA 150K Family Medicine
  • MIPS-LOW 69.8/100
  • RX-LIGHT 603
  • BOOK-LIGHT 1,133 in Mississippi
  • PHOTO-FINISH Oluwasegun Lijofi, MD · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Mal Riddell, D.O.'s MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

70 ≥ 8th percentile 8% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). This entry sits in this band. 70–80: 94,570 measured providers (21%). Above this entry. 80–90: 129,887 measured providers (29%). Above this entry. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Mal Riddell, D.O. sits

This provider among family medicine physician peers

Across the 21,266 family medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Mal Riddell, D.O. writes more Part D claims than 27% of them and scores higher on MIPS quality than 11% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 98Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 98Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 37Mal Riddell, D.O., Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 11
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one family medicine physician peer from a representative sample of 60; the gold marker is Mal Riddell, D.O.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Mal Riddell, D.O. 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 Mal Riddell, D.O.?

Below national average

NPI registry status

Active

Issued 07/19/2005

NPI 1083613210

Primary specialty

Family Medicine Physician

High-volume

150,125 US NPIs in this specialty

Medicare Part D claims

603 83% vs specialty avg

2024 prescription claims

Specialty avg: 3,519

MIPS final score

69.8/100 13.7 pts vs avg

Mid-tier band

vs 83.5 national avg

Specialty distribution in Mississippi

How Family Medicine Physician compares to other specialties among Mississippi providers

Mississippi providers
Family Nurse Practitioner8.7%Mental Health Counselor8%Pharmacist5.6%Student in an Organized Heal…5.1%Physical Therapist4.2%Speech-Language Pathologist3.7%Family Medicine Physician2.8%
Largest specialties in Mississippi (% of in-state providers)

Medicare quality performance, MIPS

Mal Riddell, D.O.'s 2023 MIPS final score plotted against the Family Medicine Physician national average

Below national average
MIPS Final Score
69.8/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%69.8%
MIPS final score (Family Medicine Physician) - 69.8/100 vs national avg 83.5
How MIPS and board certification work

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).

Practice Address

1300 SUNSET DR
Grenada, MS 38901
(662) 226-6430

Provider Details

NPI 1083613210
Specialty Family Medicine Physician
Credentials D.O.
Gender Male
NPI Issued 07/19/2005

CMS Quality Score (MIPS)

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

69.8394
Final Score
Measured-score avg: 83.5
56.0824
Quality
48.3115
Cost
83
Promoting Interoperability

Reporting: Group practice

Brand vs generic prescribing mix · Generic-heavy

Mal Riddell, D.O. - brand share 9.0%
Family Medicine Physician average

9% brand-name claims vs 91% generic, on 603 2024 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 2024.

603
Total Claims
$27K
Total Drug Cost
201
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,524.333
Total Day Supply
44,959
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$19K
Generic Drug Cost
$8K
Antibiotic Claims
12

Patient Demographics

Average Patient Age
72.7 years
Avg HCC Risk Score
0.97
Gender Split
59% female / 41% male
Age Distribution
<65: 23, 65-74: 86, 75-84: 76, 85+: 16

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

What Mal Riddell, D.O. prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Atorvastatin Calcium
 34
Omeprazole
 30
Amlodipine Besylate
 24
Lisinopril-Hydrochlorothiazide
Lisinopril/Hydrochlorothiazide
19
Losartan Potassium
 18
Lisinopril
 15
Metformin Hcl
 15
Hydrochlorothiazide
 14
Levothyroxine Sodium
 13
Famotidine
 12

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

More Family Medicine Physician in MS → All providers in Mississippi → Compare specialties →

Family Medicine Physician Overview

How Mal Riddell, D.O. fits within the Family Medicine Physician landscape nationally.

150,125
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,519
Avg Claims per Provider

Mal Riddell, D.O.'s 603 claims are below the specialty average of 3,519.

Nationwide Family Medicine Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Riddell, both outside Mississippi so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (69.8 here).

Oluwasegun Lijofi 69.8 GA Tobe Momah 69.8 LA Satira Perry 69.8 LA Anwar Cameron 69.9 KY

Same NPPES enumeration year (2005)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Veronica Vezzani Harrisville, PA Shanthi Rajaratnam Hamilton, OH Kurt Wever Golden, CO Wendy Miller Lexington, SC

Nearby Family Medicine Physician Providers in Mississippi

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

One of 1,133 Family Medicine Physician providers enrolled in Mississippi, 11 are shown on this page.

Dr. Shawanda Agnew
MD
Southaven, MS
Dr. Sahiba Ahluwalia
MD
Bay St Louis, MS
Dr. Marilyn Aiello
M.D.
Jackson, MS
Seren Ainsworth
FNP-C
Biloxi, MS
Dr. Modupe Ajisafe
M.D
Jackson, MS

Compare Family Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Mal Riddell, D.O.'s specialty? ▼
Mal Riddell, D.O. specializes in Family Medicine Physician and practices in Grenada, Mississippi. Credentials: D.O..
How much does Mal Riddell, D.O. prescribe under Medicare Part D? ▼
In 2024, Mal Riddell, D.O. wrote 603 Medicare Part D claims totaling $27K in drug costs for 201 beneficiaries.
What is Mal Riddell, D.O.'s Medicare quality score? ▼
Mal Riddell, D.O. has a CMS MIPS Final Score of 69.8/100 (Quality: 56.1, Cost: 48.3). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Mal Riddell, D.O. located? ▼
Mal Riddell, D.O. is located at 1300 SUNSET DR, Grenada, MS, 38901. Phone: (662) 226-6430.
What is Mal Riddell, D.O.'s NPI number? ▼
Mal Riddell, D.O.'s National Provider Identifier (NPI) is 1083613210, issued on 07/19/2005.
Does Mal Riddell, D.O. prescribe more brand-name or generic drugs? ▼
Mal Riddell, D.O.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $19K in brand drug costs.
How many Family Medicine Physician providers are there in the US? ▼
There are 150,125 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,519 Medicare Part D claims per year.
What drugs does Mal Riddell, D.O. prescribe most often? ▼
Based on 2024 Medicare Part D data, Mal Riddell, D.O.'s most frequently prescribed drugs include Atorvastatin Calcium, Omeprazole, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mal Riddell, D.O. accept Medicare? ▼
Mal Riddell, D.O. appears in CMS Medicare data with 603 Part D claims and 201 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mal Riddell, D.O.'s credentials? ▼
Mal Riddell, D.O.'s NPI is 1083613210 with credentials D.O.. 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

View source datasets and methodology notes
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 (2024). 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 August 2026 (NPPES) / 2024 (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 editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.