Dr. Ramona E. Aitken, MD

  • Saint Louis, MO
  • Infectious disease specialist
NPI1124095864PAC ID7416011960
Medicare services, 2024
1,474
Medicare patients, 2024
308
Part D claims, 2024
499
Publications
1
MIPS score, 2024
62
Practice address
6420 Clayton Rd, Saint Louis, MO 63117
Practice phone
Call (314) 768-8000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

SSM Health St. Mary's Hospital - St. Louis

Hospital · Saint Louis, Missouri

See all 8 affiliations

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Dr. Ramona E. Aitken is an infectious disease specialist in Saint Louis, Missouri

Dr. Aitken practices at SSM Health St. Mary's Hospital - St. Louis in Saint Louis, Missouri, part of SSM Health Care.

Dr. Aitken's NPI, 1124095864, was assigned on March 1, 2006. Dr. Aitken graduated from Carol Davila University of Medicine and Pharmacy in 1991. Dr. Aitken holds Missouri license 2002008195.

NPI and contact details
Medicare PAC ID
7416011960
NPI enumeration date
March 1, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(314) 768-8000
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
61
Medical school graduation
1991

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

Dr. Ramona E. Aitken practices at SSM Health St. Mary's Hospital - St. Louis in Saint Louis, Missouri

Dr. Aitken's primary practice is SSM Health St. Mary's Hospital - St. Louis, at 6420 Clayton Rd, Saint Louis, MO 63117 in St. Louis County. The practice phone is (314) 768-8000.

Source: Dmand AI Affiliation Data

Dr. Ramona E. Aitken is affiliated with 7 sites of care and 1 medical group

Dr. Aitken's primary practice is SSM Health St. Mary's Hospital - St. Louis in Saint Louis, Missouri, part of SSM Health Care. Dr. Aitken is also affiliated with Mercy Hospital South. The medical group on file is Infectious Diseases PC. Dmand AI also links Dr. Aitken to 3 more hospitals, 1 group practice or clinic and 1 home health agency, each named with a free account.

See all 8 affiliations for Dr. Aitken

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Ramona E. Aitken's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Aitken practices, 7 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
SSM Health St. Mary's Hospital - St. LouisAvailable with a free account
+6 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Ramona E. Aitken is one of 179 infectious disease specialists in Missouri

Infectious disease is Dr. Aitken's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Aitken is board certified in infectious disease by the American Board of Internal Medicine. Dmand AI has Dr. Aitken's licenses on file in 3 states: Missouri, Ohio and Indiana.

Specialties and state licenses

  • Infectious disease, MissouriPrimaryLicense 2002008195 · 2002 to 2026 · taxonomy 207RI0200X
  • Ohio license1999 to 2016
  • Indiana license1998 to 2015

Clinical focus

Dmand AI lists acute skin infection, cellulitis, hiv/aids, joint or bone infection, sepsis, shingles and UTI among the conditions Dr. Aitken treats.

Infectious disease specialists near Dr. Aitken

Counts of infectious disease specialists 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. Ramona E. Aitken billed Medicare for 1,474 services in 2024

CMS data shows 1,474 Medicare services from Dr. Aitken across 5 procedure codes in 2024, for 308 Medicare patients. Medicare paid $105,265 for them.

Medicare services, 20241,474
Medicare patients308
Paid by Medicare$105,265
Procedure codes5

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

  • 2023
  • 2024
Office and hospital visits
2023: 1,2792024: 1,47415%

Where Dr. Aitken's Medicare services took place, 2024

  • In an office423%
  • In a facility1,43297%

Dr. Aitken compared with the Missouri median for infectious disease specialists, 2024

  • Dr. Aitken
  • Missouri median
Medicare services
1,474vs 2765.3 times
Medicare patients
308vs 1272.4 times
Part D claims
426vs 2032.1 times

Medians across 176 infectious disease specialists in Missouri with Dmand AI profiles that report each measure.

Dr. Aitken'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. Aitken

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Aitken and other infectious disease specialists in Missouri.

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

Dr. Ramona E. Aitken treated 308 Medicare patients in 2024, average age 71

CMS counts 308 Medicare patients who saw Dr. Aitken in 2024. The largest group is 65 to 74, with 95 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 44% are also on Medicaid. Their average risk score is 3.62, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Aitken's median patient age at 62, with 48% women.

Medicare patients, 2024308
Average age71
Average risk score3.62
Also on Medicaid44%

Dr. Aitken's Medicare patients by age, 2024

Dr. Aitken's Medicare patients by sex, 2024

  • Women16253%
  • Men14647%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis67%
  4. Chronic kidney disease64%
  5. Heart failure59%
  6. Diabetes55%
  7. Ischemic heart disease51%
  8. Anxiety48%

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

Dr. Aitken's patients across all payers

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

Patient panel by age, all payers

Median age 62

Patient panel by sex, all payers

  • Women48%
  • Men52%

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

Dr. Ramona E. Aitken wrote 499 Medicare Part D claims in 2024

In 2024, Dr. Aitken wrote 499 Medicare Part D claims for 112 patients. 83% of them were for generic drugs. CMS names the drug for 426 of them, across 12 drugs with 11 or more claims each, at $313,504 in total drug cost. In 2023, CMS named 545 claims across 14 drugs.

Part D claims, 2024499
Drugs named by CMS12
Total drug cost$313,504
Part D patients112

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

  • Generic414 claims83%
  • Brand-name85 claims17%

Dr. Aitken'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.

Drug classes CMS tracks in Dr. Aitken's Part D claims, 2024

  • Antibiotics83%413 of 499 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 5452024: 42622%

Drugs named by CMS: 12 in 2024, 14 in 2023.

See all prescribing by Dr. Aitken

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. Ramona E. Aitken scored 62 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 62 out of 100 for Dr. Aitken for performance year 2024, reported individually. Dr. Aitken accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Aitken as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Aitken's MIPS scores, performance year 2024

  • 62of 100Final score
  • 75.5of 100Quality
  • 0of 100Improvement Activities
  • 74of 100Cost

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

For MedTech and pharma teams

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Dr. Ramona E. Aitken has 1 publication on record

Dmand AI links 1 paper to Dr. Aitken.

Papers1

Recent publications by Dr. Aitken

See all 1 publications and co-authors

See who Dr. Aitken researches with

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

How network discovery works

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

Dr. Ramona E. Aitken received $272 in industry payments from 2016 to 2024

CMS Open Payments shows 5 general payments to Dr. Aitken from 5 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. KCI USA, Inc. paid the most, $116.

General payments to Dr. Aitken by program year, 2016 to 2024

Companies that paid Dr. Aitken the most, 2016 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Aitken

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

Dr. Ramona E. Aitken has 4 awards and honors on record

Dmand AI lists 4 awards for Dr. Aitken, most recently Outstanding resident in 2000.

Awards and honors for Dr. Aitken

  1. 2000
    • Outstanding resident
    • Outstanding Resident Award
  2. 1999
    • Best resident
    • Best Resident Award

Source: Dmand AI Professional Profile Data

Dr. Ramona E. Aitken graduated from Carol Davila University of Medicine and Pharmacy

Dr. Aitken graduated from Carol Davila University of Medicine and Pharmacy in 1991. Dr. Aitken is a member of ACP and IDSA.

  1. Medical schoolCarol Davila University of Medicine and Pharmacy
  2. Board certified in infectious diseaseAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Ramona E. Aitken accepts plans from 19 insurance carriers

Dr. Aitken is in network with 19 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.

Plan types Dr. Aitken accepts, by number of carriers

  1. PPO13
  2. Medicare10
  3. HMO8
  4. POS4
  5. EPO3

Source: Dmand AI Insurance Network Data

Sources for Dr. Ramona E. Aitken'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy 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. Ramona E. Aitken

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. Ramona E. Aitken's NPI number?

Dr. Ramona E. Aitken's NPI number is 1124095864. It was assigned on March 1, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Ramona E. Aitken?

Dr. Ramona E. Aitken is an infectious disease specialist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).

Where does Dr. Ramona E. Aitken practice?

Dr. Aitken practices at 6420 Clayton Rd, Saint Louis, MO 63117. Dr. Aitken's primary practice is SSM Health St. Mary's Hospital - St. Louis in Saint Louis, Missouri, part of SSM Health Care. Dmand AI also links Dr. Aitken to 3 hospitals, 1 group practice or clinic and 1 home health agency.

What is Dr. Ramona E. Aitken's office phone number?

The practice phone on file for Dr. Aitken is (314) 768-8000.

What is Dr. Ramona E. Aitken's medical license number?

Dr. Aitken holds Missouri license 2002008195, one of the licenses on file in 3 states.

Which states has Dr. Ramona E. Aitken been licensed in?

Dmand AI has state licenses on file for Dr. Aitken in Missouri (2002 to 2026), Ohio (1999 to 2016) and Indiana (1998 to 2015).

Which hospitals is Dr. Ramona E. Aitken affiliated with?

Dr. Aitken practices at SSM Health St. Mary's Hospital - St. Louis in Saint Louis, Missouri. Dr. Aitken is also affiliated with Mercy Hospital South. Dmand AI links Dr. Aitken to 3 more hospitals.

What medical group is Dr. Ramona E. Aitken part of?

Dr. Aitken is linked to Infectious Diseases PC.

Does Dr. Ramona E. Aitken accept Medicare?

Yes. CMS data shows Dr. Aitken billed Medicare for 1,474 services in 2024, and Dr. Aitken accepts Medicare assignment.

Does Dr. Ramona E. Aitken offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Aitken as offering telehealth services.

Show 10 more questionsShow fewer questions

What is Dr. Ramona E. Aitken's MIPS score?

Dr. Aitken's MIPS final score for performance year 2024 is 62 out of 100, reported individually.

How many Medicare patients does Dr. Ramona E. Aitken see?

CMS counts 308 Medicare patients who saw Dr. Aitken in 2024, with an average age of 71.

Is Dr. Ramona E. Aitken board certified?

Yes. Dr. Aitken is board certified in infectious disease by the American Board of Internal Medicine.

What services does Dr. Ramona E. Aitken bill to Medicare?

In 2024, Dr. Aitken's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99223).

Where did Dr. Ramona E. Aitken go to medical school?

Dr. Aitken graduated from Carol Davila University of Medicine and Pharmacy in 1991.

What drugs does Dr. Ramona E. Aitken prescribe most?

In 2024 Medicare Part D data, Dr. Aitken's most prescribed drugs by claims were Biktarvy, Daptomycin and Vancomycin HCl.

Has Dr. Ramona E. Aitken received payments from drug or device companies?

CMS Open Payments shows $272 in general payments to Dr. Aitken from 5 companies from 2016 to 2024. The largest total came from KCI USA, Inc.

How long has Dr. Ramona E. Aitken been practicing?

Dr. Aitken graduated from medical school in 1991, 35 years ago.

Does Dr. Ramona E. Aitken do research?

Dmand AI links 1 publication to Dr. Aitken.

What insurance does Dr. Ramona E. Aitken accept?

Dr. Aitken is in network with 19 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.

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