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RAMONA AITKEN MD
NPI 1124095864
Internal Medicine - Infectious Disease in Saint Louis, MO

Active since March 01, 2006PECOS EnrolledAccepts Medicare Assignment
50.71/100
CMS Quality Rating
10004 KENNERLY RD STE 171B, SAINT LOUIS, MO 63128(314) 821-0900 Get Directions Write a Review

NPPES record last updated: August 25, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Aug 25, 2021, Aug 10, 2021 (2 updates tracked since 2021).

About Ramona Aitken Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

RAMONA AITKEN MD (NPI 1124095864) is an individual infectious disease provider in Saint Louis, Missouri, licensed in Missouri (2002008195) and active in the NPI registry since March 2006. She is enrolled in Medicare PECOS, is affiliated with Mercy Hospital South, and is a graduate of Other (1991).

NPPES Registry Identity

NPI1124095864
Entity TypeIndividualFemale
Primary Taxonomy207RI0200X
Provider Legal NameRAMONA AITKENCredential: MD
Location Address10004 KENNERLY RD STE 171BSaint Louis, MO 63128-2176
Mailing AddressPo Box 504934Saint Louis, MO 63150-4934 · (314) 821-0900
Phone(314) 821-0900
Sole ProprietorNo
Medical School CMSOtherGraduated 1991
Enumeration DateMarch 1, 2006
Last NPPES UpdateAugust 25, 20212 updates tracked since enumeration
NPPES CertifiedAugust 25, 2021
✔ NPI 1124095864 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in MO · 2002008195
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
10004 KENNERLY RD STE 171B, Saint Louis, MO 63128
Open in Google Maps ↗

Other Names 1

Former Name (1)Ramona Simionescu Md

Other Identifiers 1

Medicaid205975907MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ramona Aitken Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7416011960
PECOS Enrollment IDI20090127000642
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
830 services213 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
411 services219 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
191 services175 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
25 services16 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
17 services15 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mercy Hospital South

Acute Care Hospitals · Saint Louis, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260077
Location10010 Kennerly RoadSaint Louis, MO 63128 · St. Louis County
Emergency services

Ssm St Clare Health Center

Acute Care Hospitals · Fenton, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260081
Location1015 BowlesFenton, MO 63026 · Jefferson County
Emergency services Birthing friendly

Ssm Health St Mary's Hospital - St Louis

Acute Care Hospitals · Richmond Heights, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260091
Location6420 Clayton RdRichmond Heights, MO 63117 · St. Louis County
Emergency services Birthing friendly

Ssm Health Depaul Hospital St Louis

Acute Care Hospitals · Bridgeton, MO
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number260104
Location12303 Depaul DriveBridgeton, MO 63044 · St. Louis County
Emergency services Birthing friendly

Ssm Health Saint Louis University Hospital

Acute Care Hospitals · Saint Louis, MO
1/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number260105
Location3635 Vista AveSaint Louis, MO 63110 · St. Louis City County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63128 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$128.28 typical visit price
range $55.65 – $169.38
Typical copayment $32.07 (range $13.91 – $42.34)
Most-billed visit code 99204
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

50.71/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality65
Improvement Activities0
Cost49.06

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BLESSY JOHN M.D.
Internal Medicine (Infectious Disease)
10004 KENNERLY RD STE 171B
SAINT LOUIS, MO 63128
St. Louis County (314) 821-0900
UCHENNA THERESE IKEDIOBI M.D.
Internal Medicine (Infectious Disease)
10004 KENNERLY RD STE 171B
SAINT LOUIS, MO 63128
St. Louis County (314) 821-0900

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ramona Aitken's NPI number?

The NPI number for Ramona Aitken is 1124095864. It was assigned to this individual provider in the NPPES registry on March 1, 2006. The provider is also known as Ramona Simionescu MD.

Where is Ramona Aitken located?

Ramona Aitken practices at 10004 Kennerly Rd Ste 171B, Saint Louis, MO 63128. The listed phone number is (314) 821-0900.

What is Ramona Aitken's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Ramona Aitken enrolled in Medicare?

Yes. Ramona Aitken is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Ramona Aitken accept?

Health plans from UnitedHealthcare list Ramona Aitken as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Ramona Aitken affiliated with any hospitals?

According to CMS data, Ramona Aitken is affiliated with Mercy Hospital South, Ssm St Clare Health Center, Ssm Health St Mary's Hospital - St Louis, Ssm Health Depaul Hospital St Louis and Ssm Health Saint Louis University Hospital.

When was this NPI record last updated?

The NPPES record for Ramona Aitken was last updated on August 25, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.