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ANDREW DAWSON D.O.
NPI 1912353533
Psychiatry & Neurology - Neurology in Lake Saint Louis, MO

Active since May 12, 2016PECOS EnrolledAccepts Medicare Assignment
2300 HRC PLAZA DR, LAKE SAINT LOUIS, MO 63367(636) 425-4673(636) 898-8198 Get Directions Write a Review

NPPES record last updated: September 5, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 5, 2025, Mar 3, 2025, Apr 8, 2024 and 5 more (8 updates tracked since 2016).

About Andrew Dawson D.o. NPPES

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

ANDREW DAWSON D.O. (NPI 1912353533) is an individual neurology provider in Lake Saint Louis, Missouri, licensed in Missouri (2021011023) and active in the NPI registry since May 2016. He is enrolled in Medicare PECOS, is affiliated with Hannibal Regional Hospital, and maintains a secondary practice location in Hannibal.

NPPES Registry Identity

NPI1912353533
Entity TypeIndividualMale
Primary Taxonomy2084N0400X
Provider Legal NameANDREW DAWSONCredential: D.O.
Location Address2300 HRC PLAZA DRLake Saint Louis, MO 63367-2367
Mailing Address2300 Hrc Plaza DrLake Saint Louis, MO 63367-2367 · (636) 425-4673
Phone(636) 425-4673
Fax(636) 898-8198
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateMay 12, 2016
Last NPPES UpdateSeptember 5, 20258 updates tracked since enumeration
NPPES CertifiedSeptember 5, 2025
✔ NPI 1912353533 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
Licenses✔ Licensed in MO · 2021011023✔ Licensed in KS · 05-47677
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
2300 HRC PLAZA DR, Lake Saint Louis, MO 63367
Open in Google Maps ↗

Secondary Practice Location 1

Location 16500 Hospital DrHannibal, MO 63401-6890 · Phone (573) 629-3500 · Fax (573) 629-3534

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Andrew Dawson D.o. 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 ID42502478
PECOS Enrollment IDI20211008002688, I20230518001754
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.

Medicare Billing Reassignments

3

Medicare enrollment records show Andrew Dawson reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Hope Headache And Neurology LLC
Same address
Neurology
2300 HRC PLAZA DR
Lake Saint Louis, MO 63367
  • Reassigned Medicare billing, Missouri enrollment
  • 3 clinicians in this Medicare group
NPI 1831971829 (636) 425-4673
Mercy Hospitals East Communities
20 mi
Clinic/Center
615 S NEW BALLAS RD
Saint Louis, MO 63141
  • Reassigned Medicare billing, Missouri enrollment
  • 435 clinicians in this Medicare group
NPI 1851431738 (314) 251-6382
Hannibal Regional Healthcare System, Inc
74 mi
Multi-Specialty
6500 HOSPITAL DRIVE
Hannibal, MO 63401
  • Reassigned Medicare billing, Missouri enrollment
  • 149 clinicians in this Medicare group
NPI 1134311392 (573) 248-1300

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

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.
47 services25 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.
29 services20 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
24 services24 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
18 services13 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
13 services13 patients

Hospital Affiliations CMS Care Compare 3

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

Hannibal Regional Hospital

Acute Care Hospitals · Hannibal, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number260025
Location6000 Hospital DrHannibal, MO 63401 · Marion County
Emergency services Birthing friendly

Ssm St Joseph Hospital West

Acute Care Hospitals · Lake Saint Louis, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number260200
Location100 Medical PlazaLake Saint Louis, MO 63367 · St. Charles County
Emergency services Birthing friendly

Mercy Hospital Lincoln

Critical Access Hospitals · Troy, MO
OwnershipGovernment - Local
CMS Certification Number261319
Location1000 East Cherry StreetTroy, MO 63379 · Lincoln County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63367 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.

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.

DIVYA SIVAKUMAR D.O., M.A.
Psychiatry & Neurology (Neurology)
2300 HRC PLAZA DR
LAKE SAINT LOUIS, MO 63367
St. Charles County (636) 425-4673
HOPE HEADACHE AND NEUROLOGY LLC
Psychiatry & Neurology (Neurology)
2300 HRC PLAZA DR
LAKE SAINT LOUIS, MO 63367
St. Charles County (636) 425-4673

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 Andrew Dawson's NPI number?

The NPI number for Andrew Dawson is 1912353533. It was assigned to this individual provider in the NPPES registry on May 12, 2016.

Where is Andrew Dawson located?

Andrew Dawson practices at 2300 Hrc Plaza Dr, Lake Saint Louis, MO 63367. The listed phone number is (636) 425-4673.

What is Andrew Dawson's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Andrew Dawson enrolled in Medicare?

Yes. Andrew Dawson 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.

Which organizations bill Medicare for Andrew Dawson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Andrew Dawson reassigns Medicare benefits to 3 organizations: Hope Headache And Neurology LLC (Lake Saint Louis, MO), Mercy Hospitals East Communities (Saint Louis, MO) and Hannibal Regional Healthcare System, Inc (Hannibal, MO). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Andrew Dawson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Andrew Dawson accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 4 other insurers list Andrew Dawson 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 Andrew Dawson affiliated with any hospitals?

According to CMS data, Andrew Dawson is affiliated with Hannibal Regional Hospital, Ssm St Joseph Hospital West and Mercy Hospital Lincoln.

When was this NPI record last updated?

The NPPES record for Andrew Dawson was last updated on September 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.