REYANNA G MASSAQUOI MD
NPI 1417330531
Psychiatry & Neurology - Neurology in Saint Louis, MO

Active since July 07, 2015PECOS EnrolledAccepts Medicare Assignment
1438 S GRAND BLVD, SAINT LOUIS, MO 63104(314) 977-6082(314) 977-6086 Get Directions Write a Review

NPPES record last updated: August 5, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Reyanna G Massaquoi Md NPPES

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

REYANNA G MASSAQUOI MD (NPI 1417330531) is an individual neurology provider in Saint Louis, Missouri, licensed in Minnesota (67580) and active in the NPI registry since July 2015. She is enrolled in Medicare PECOS, is affiliated with Allina United Hospital, and is a graduate of Other (2014).

NPPES Registry Identity

NPI1417330531
Entity TypeIndividualFemale
Primary Taxonomy2084N0400X
Provider Legal NameREYANNA G MASSAQUOICredential: MD
Location Address1438 S GRAND BLVDSaint Louis, MO 63104-1027
Mailing Address1438 S Grand BlvdSaint Louis, MO 63104-1027 · (314) 977-6082 · Fax (314) 977-6086
Fax(314) 977-6086
Sole ProprietorNo
Medical School CMSOtherGraduated 2014
Enumeration DateJuly 7, 2015
Last NPPES UpdateAugust 5, 2020
NPPES CertifiedAugust 5, 2020
✔ NPI 1417330531 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
License✔ Licensed in MN · 67580
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.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License 2015017198 (MO)
1438 S GRAND BLVD, Saint Louis, MO 63104

Accepted 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

Reyanna G Massaquoi 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 ID8921300468
PECOS Enrollment IDI20200702001668, I20211027001986
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

13

Medicare enrollment records show Reyanna Massaquoi reassigns Medicare billing to 13 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Obstetrics & Gynecology
2250 NW 26TH ST
Owatonna, MN 55060
  • Reassigned Medicare billing, Minnesota and Wisconsin enrollments
  • Also billed through NPI 1003112822 (Wisconsin)
  • 3,733 clinicians in this Medicare group
Primary Care
225 HUSETH ST
Kenyon, MN 55946
  • Reassigned Medicare billing, Minnesota enrollment
  • 249 clinicians in this Medicare group
Critical Access
621 S 4TH ST
Le Sueur, MN 56058
  • Reassigned Medicare billing, Minnesota enrollment
  • 201 clinicians in this Medicare group
Critical Access
601 WEST CHANDLER STREET
Arlington, MN 55307
  • Reassigned Medicare billing, Minnesota enrollment
  • 229 clinicians in this Medicare group
General Acute Care Hospital
111 HUNDERTMARK RD
Chaska, MN 55318
  • Reassigned Medicare billing, Minnesota enrollment
  • 581 clinicians in this Medicare group
Critical Access
1805 HENNEPIN AVE N
Glencoe, MN 55336
  • Reassigned Medicare billing, Minnesota enrollment
  • 95 clinicians in this Medicare group
Critical Access
2600 65TH AVE
Osceola, WI 54020
  • Reassigned Medicare billing, Wisconsin enrollment
  • 170 clinicians in this Medicare group
Family Medicine
345 10TH AVE
Granite Falls, MN 56241
  • Reassigned Medicare billing, Minnesota enrollment
  • 82 clinicians in this Medicare group
Critical Access
257 W SAINT GEORGE AVE
Grantsburg, WI 54840
  • Reassigned Medicare billing, Wisconsin enrollment
  • 92 clinicians in this Medicare group
Critical Access
11040 N STATE ROAD 77
Hayward, WI 54843
  • Reassigned Medicare billing, Wisconsin enrollment
  • 104 clinicians in this Medicare group

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 4

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 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.
51 services32 patients
Telehealth consultation, emergency department or initial inpatient, typically 70 minutes or more communicating with the patient via telehealth G0427
A Telehealth consultation is a virtual visit where you can discuss your health concerns with a healthcare provider from the comfort of your home. In this process, which typically lasts 70 minutes or more, the provider can assess, diagnose, and offer treatment options for your condition using communication technology.
48 services48 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.
28 services28 patients
Follow-up inpatient consultation, complex, physicians typically spend 35 minutes communicating with the patient via telehealth G0408
A follow-up inpatient consultation is a service where your doctor checks on your health progress after initial treatment. It's complex and typically takes about 35 minutes via telehealth, which means you'll talk to your doctor remotely, using technology.
12 services11 patients

Hospital Affiliations CMS Care Compare 3

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

Allina United Hospital

Acute Care Hospitals · Saint Paul, MN
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number240038
Location333 North Smith AvenueSaint Paul, MN 55102 · Ramsey County
Emergency services Birthing friendly

Abbott Northwestern Hospital

Acute Care Hospitals · Minneapolis, MN
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number240057
Location800 East 28th StreetMinneapolis, MN 55407 · Hennepin County
Emergency services Birthing friendly

Mercy Hospital

Acute Care Hospitals · Coon Rapids, MN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number240115
Location4050 Coon Rapids BlvdCoon Rapids, MN 55433 · Anoka County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63104 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 20

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

Nurse Practitioner
1438 S GRAND BLVD
SAINT LOUIS, MO 63104
Psychiatry & Neurology (Psychiatry)
1438 S GRAND BLVD
SAINT LOUIS, MO 63104
Psychiatry & Neurology (Neurology)
1438 S GRAND BLVD, ST. LOUIS UNIVERSITY, DEPT. NEUROLOGY & PSYCHIATRY
SAINT LOUIS, MO 63104
Psychiatry & Neurology (Psychiatry)
1438 S GRAND BLVD
SAINT LOUIS, MO 63104
Student in an Organized Health Care Education/Training Program
1438 S GRAND BLVD
SAINT LOUIS, MO 63104
Psychiatry & Neurology (Psychiatry)
1438 S GRAND BLVD
SAINT LOUIS, MO 63104
Psychiatry & Neurology (Psychiatry)
1438 S GRAND BLVD
SAINT LOUIS, MO 63104
Psychiatry & Neurology (Psychiatry)
1438 S GRAND BLVD
SAINT LOUIS, MO 63104

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 Reyanna Massaquoi's NPI number?

The NPI number for Reyanna Massaquoi is 1417330531. It was assigned to this individual provider in the NPPES registry on July 7, 2015.

Where is Reyanna Massaquoi located?

Reyanna Massaquoi practices at 1438 S Grand Blvd, Saint Louis, MO 63104. The listed phone number is (314) 977-6082.

What is Reyanna Massaquoi's specialty?

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

Is Reyanna Massaquoi enrolled in Medicare?

Yes. Reyanna Massaquoi 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 Reyanna Massaquoi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Reyanna Massaquoi reassigns Medicare benefits to 13 organizations: Allina Health System (Owatonna, MN), Northfield Hospital (Kenyon, MN), Minnesota Valley Health Center Inc (Le Sueur, MN), Sibley Medical Center (Arlington, MN), Ridgeview Medical Center (Chaska, MN) and 8 more organizations, listed in the Medicare section above. 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 Reyanna Massaquoi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Reyanna Massaquoi accept?

Health plans from HealthPartners, Sanford Health Plan and Security Health Plan list Reyanna Massaquoi 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 Reyanna Massaquoi affiliated with any hospitals?

According to CMS data, Reyanna Massaquoi is affiliated with Allina United Hospital, Abbott Northwestern Hospital and Mercy Hospital.

When was this NPI record last updated?

The NPPES record for Reyanna Massaquoi was last updated on August 5, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.