Dr. Mary Katherine Walton, MD

  • Shreveport, LA
  • Rheumatologist
NPI1235349580PAC ID2365615796
Medicare services, 2024
82,894
Medicare patients, 2024
621
Part D claims, 2024
1,549
Publications
5
MIPS score, 2024
89
Practice address
820 Jordan St, Shreveport, LA 71101
Practice phone
Call (318) 221-0399
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Rheumatology and Osteoporosis Specialists, AMC

Shreveport, Louisiana

See all 5 affiliations

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Dr. Mary Katherine Walton is a rheumatologist in Shreveport, Louisiana

Dr. Walton practices at Rheumatology and Osteoporosis Specialists, AMC in Shreveport, Louisiana.

Dr. Walton's NPI, 1235349580, was assigned on May 23, 2007. Dr. Walton graduated from LSU School of Medicine in Shreveport in 2006. Dr. Walton holds Louisiana license 202525.

NPI and contact details
Medicare PAC ID
2365615796
NPI enumeration date
May 23, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(318) 221-0399
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
46
Medical school graduation
2006

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Mary Katherine Walton practices at Rheumatology and Osteoporosis Specialists, AMC in Shreveport, Louisiana

Dr. Walton's primary practice is Rheumatology and Osteoporosis Specialists, AMC, at 820 Jordan St, Shreveport, LA 71101 in Caddo Parish. The practice phone is (318) 221-0399.

  • Rheumatology and Osteoporosis Specialists, AMC
    820 Jordan St, Shreveport, LA 71101 · Caddo ParishPhone(318) 221-0399

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Mary Katherine Walton is affiliated with 4 sites of care and 1 medical group

Dr. Walton's primary practice is Rheumatology and Osteoporosis Specialists, AMC in Shreveport, Louisiana. Dr. Walton is also affiliated with Willis Knighton North. The medical group on file is Rheumatology and Osteoporosis Specialists. Dmand AI also links Dr. Walton to 1 more hospital and 1 group practice or clinic, each named with a free account.

See all 5 affiliations for Dr. Walton

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Mary Katherine Walton's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Walton practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Rheumatology and Osteoporosis Specialists, AMCAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Mary Katherine Walton is one of 81 rheumatologists in Louisiana

Rheumatology is Dr. Walton's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Walton is licensed in Louisiana.

Specialties and state licenses

  • Rheumatology, LouisianaPrimaryLicense 202525 · taxonomy 207RR0500X

Clinical focus

Dmand AI lists arteritis, arthritis, gout, joint pain, lupus, muscle pain, fibromyalgia, and limb pain, osteoporosis and rheumatoid arthritis among the conditions Dr. Walton treats.

Rheumatologists near Dr. Walton

Counts of rheumatologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Mary Katherine Walton billed Medicare for 82,894 services in 2024

CMS data shows 82,894 Medicare services from Dr. Walton across 31 procedure codes in 2024, for 621 Medicare patients. Medicare paid $1,083,670 for them. Every service was in an office.

Medicare services, 202482,894
Medicare patients621
Paid by Medicare$1.1M
Procedure codes31

Dr. Walton's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Drugs given in the office
2023: 58,0792024: 79,53437%
Imaging
2023: 1,7172024: 1,7411%
Tests and treatments
2023: 6652024: 79720%
Office and hospital visits
2023: 7252024: 7092%
Surgery
2023: 812024: 832%
Other services
2023: 02024: 30

Dr. Walton compared with the Louisiana median for rheumatologists, 2024

  • Dr. Walton
  • Louisiana median
Medicare services
82,894vs 672123.4 times
Medicare patients
621vs 2242.8 times
Part D claims
1,461vs 2,05829% below

Medians across 81 rheumatologists in Louisiana with Dmand AI profiles that report each measure.

Dr. Walton's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Walton

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Mary Katherine Walton treated 621 Medicare patients in 2024, average age 74

CMS counts 621 Medicare patients who saw Dr. Walton in 2024. The largest group is 65 to 74, with 334 patients. 75% of them have arthritis, and 75% have high blood pressure. 3% are also on Medicaid. Their average risk score is 1.23, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Walton's median patient age at 68, with 80% women.

Medicare patients, 2024621
Average age74
Average risk score1.23
Also on Medicaid3%

Dr. Walton's Medicare patients by age, 2024

Dr. Walton's Medicare patients by sex, 2024

  • Women51282%
  • Men10918%

Chronic conditions among Dr. Walton's Medicare patients, 2024

  1. Arthritis75%
  2. High blood pressure75%
  3. High cholesterol74%
  4. Osteoporosis56%
  5. Anxiety27%
  6. Mood disorders27%
  7. Diabetes25%
  8. Ischemic heart disease25%

Share of Medicare patients with each condition. A patient can have several.

Dr. Walton's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 68

Patient panel by sex, all payers

  • Women80%
  • Men18%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Mary Katherine Walton wrote 1,549 Medicare Part D claims in 2024

In 2024, Dr. Walton wrote 1,549 Medicare Part D claims for 256 patients. 63% of them were for generic drugs. CMS names the drug for 1,461 of them, across 25 drugs with 11 or more claims each, at $1,976,383 in total drug cost. In 2023, CMS named 1,506 claims across 22 drugs.

Part D claims, 20241,549
Drugs named by CMS25
Total drug cost$2M
Part D patients256

Dr. Walton's Part D claims by kind of drug, 2024

  • Generic977 claims63%
  • Brand-name558 claims36%
  • Other14 claims1%

Dr. Walton's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1,5062024: 1,4613%

Drugs named by CMS: 25 in 2024, 22 in 2023.

See all prescribing by Dr. Walton

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Mary Katherine Walton scored 89 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Walton for performance year 2024, reported individually. Dr. Walton accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Walton's MIPS scores, performance year 2024

  • 89of 100Final score
  • 77.2of 100Quality
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Mary Katherine Walton has 5 publications on record

Dmand AI links 5 papers to Dr. Walton.

Papers5

Recent publications by Dr. Walton

See all 5 publications and co-authors

See who Dr. Walton researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Walton works with, so you can find a warm path to the right rheumatologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Mary Katherine Walton received $22,349 in industry payments from 2016 to 2025

CMS Open Payments shows 1,326 general payments to Dr. Walton from 33 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Amgen Inc. paid the most, $5,827.

General payments to Dr. Walton by program year, 2016 to 2025

General payments to Dr. Walton by kind, 2016 to 2025

$22.3Kin total
  • Food and beverage$22,12299%
  • Education$2271%

Companies that paid Dr. Walton the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Walton

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Mary Katherine Walton has 1 award and honors on record

Dmand AI lists 1 award for Dr. Walton, most recently CMS Stage 1 EHR in 2013.

Awards and honors for Dr. Walton

  1. 2013
    • CMS Stage 1 EHR

Source: Dmand AI Professional Profile Data

Dr. Mary Katherine Walton graduated from LSU School of Medicine in Shreveport

Dr. Walton graduated from LSU School of Medicine in Shreveport in 2006.

  1. Medical schoolLSU School of Medicine in Shreveport

Source: Dmand AI Professional Profile Data

Dr. Mary Katherine Walton accepts plans from 10 insurance carriers

Dr. Walton is in network with 10 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 6. Check the plan with the practice before a visit.

  • Aetna
  • United Healthcare
  • Blue Cross Blue Shield of Michigan
  • Elevance
  • Humana
  • Aspirus Health Plan
  • Blue Cross and Blue Shield of Kansas City
  • Blue Cross and Blue Shield of Louisiana
  • +2 more carriersWith a free account

Plan types Dr. Walton accepts, by number of carriers

  1. PPO6
  2. POS5
  3. HMO4
  4. Medicare4
  5. EPO2

Source: Dmand AI Insurance Network Data

Sources for Dr. Mary Katherine Walton's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Mary Katherine Walton

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Mary Katherine Walton's NPI number?

Dr. Mary Katherine Walton's NPI number is 1235349580. It was assigned on May 23, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Mary Katherine Walton?

Dr. Mary Katherine Walton is a rheumatologist in Shreveport, Louisiana. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).

Where does Dr. Mary Katherine Walton practice?

Dr. Walton practices at 820 Jordan St, Shreveport, LA 71101. Dr. Walton's primary practice is Rheumatology and Osteoporosis Specialists, AMC in Shreveport, Louisiana. Dmand AI also links Dr. Walton to 1 hospital and 1 group practice or clinic.

What is Dr. Mary Katherine Walton's office phone number?

The practice phone on file for Dr. Walton is (318) 221-0399.

What is Dr. Mary Katherine Walton's medical license number?

Dr. Walton holds Louisiana license 202525.

Which hospitals is Dr. Mary Katherine Walton affiliated with?

Dr. Walton is affiliated with Willis Knighton North. Dmand AI links Dr. Walton to 1 more hospital.

What medical group is Dr. Mary Katherine Walton part of?

Dr. Walton is linked to Rheumatology and Osteoporosis Specialists.

Does Dr. Mary Katherine Walton accept Medicare?

Yes. CMS data shows Dr. Walton billed Medicare for 82,894 services in 2024, and Dr. Walton accepts Medicare assignment.

What is Dr. Mary Katherine Walton's MIPS score?

Dr. Walton's MIPS final score for performance year 2024 is 89 out of 100, reported individually.

How many Medicare patients does Dr. Mary Katherine Walton see?

CMS counts 621 Medicare patients who saw Dr. Walton in 2024, with an average age of 74.

Show 7 more questionsShow fewer questions

What services does Dr. Mary Katherine Walton bill to Medicare?

In 2024, Dr. Walton's most billed Medicare services were injected or infused drug (J1602), injected or infused drug (J3111) and injected or infused drug (J0717).

Where did Dr. Mary Katherine Walton go to medical school?

Dr. Walton graduated from LSU School of Medicine in Shreveport in 2006.

What drugs does Dr. Mary Katherine Walton prescribe most?

In 2024 Medicare Part D data, Dr. Walton's most prescribed drugs by claims were Hydroxychloroquine Sulfate, Methotrexate and Sulfasalazine.

Has Dr. Mary Katherine Walton received payments from drug or device companies?

CMS Open Payments shows $22,349 in general payments to Dr. Walton from 33 companies from 2016 to 2025. The largest total came from Amgen Inc.

How long has Dr. Mary Katherine Walton been practicing?

Dr. Walton graduated from medical school in 2006, 20 years ago.

Does Dr. Mary Katherine Walton do research?

Dmand AI links 5 publications to Dr. Walton.

What insurance does Dr. Mary Katherine Walton accept?

Dr. Walton is in network with 10 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 6. Check the plan with the practice before a visit.

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