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DR. CLARISSA JARA ALLEN MD
NPI 1952513541
Family Medicine in Ellisville, MO

Active since May 04, 2007Opted out of Medicare · through Oct 1, 2027
225 CLARKSON RD, ELLISVILLE, MO 63011(636) 230-5050(636) 230-5057 Get Directions Write a Review

NPPES record last updated: February 11, 2015. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Clarissa Jara Allen Md NPPES

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

DR. CLARISSA JARA ALLEN MD (NPI 1952513541) is an individual family medicine provider in Ellisville, Missouri, licensed in Missouri (2013027611) and active in the NPI registry since May 2007. She has opted out of Medicare through October 1, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1952513541
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. CLARISSA JARA ALLENCredential: MD
Location Address225 CLARKSON RDEllisville, MO 63011-2278
Mailing Address225 Clarkson RdEllisville, MO 63011-2278 · (636) 230-5050 · Fax (636) 230-5057
Phone(636) 230-5050
Fax(636) 230-5057
Sole ProprietorNo
Enumeration DateMay 4, 2007
Last NPPES UpdateFebruary 11, 2015
✔ NPI 1952513541 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Licenses✔ Licensed in MO · 2013027611✔ Licensed in KY · 41675✔ Licensed in GA · 067878
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
225 CLARKSON RD, Ellisville, MO 63011
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Other Names 1

Former Name (1)Clarissa Gesmundo Md

Other Identifiers 1

Medicare PIN146890006MO

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Clarissa Jara Allen Md has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from October 1, 2019 through October 1, 2027.

Opt-Out Effective DateOctober 1, 2019
Opt-Out In Effect ThroughOctober 1, 2027Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63011 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
$86.32 typical visit price
range $55.65 – $169.38
Typical copayment $21.58 (range $13.91 – $42.34)
Most-billed visit code 99203
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 13

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

MRS. PATRICIA L PITMAN FNP
Nurse Practitioner
225 CLARKSON RD
ELLISVILLE, MO 63011
St. Louis County (636) 685-7715
WESTGLEN FAMILY PHYSICIANS, LLC
Family Medicine
225 CLARKSON RD
ELLISVILLE, MO 63011
St. Louis County (366) 857-7156
WILLIAM MARKUS KOEPPEL D.O.
Family Medicine
225 CLARKSON RD
ELLISVILLE, MO 63011
St. Louis County (706) 865-4001
WESTGLEN FAMILY PHYSICIANS, LLC
Clinic/Center (Primary Care)
225 CLARKSON RD
ELLISVILLE, MO 63011
St. Louis County (636) 685-7715
JEANNE MARIE RITCHIE
Physician Assistant
225 CLARKSON RD
ELLISVILLE, MO 63011
St. Louis County (636) 230-5050
DR. CYNTHIA J POELKER M.D.
Family Medicine
225 CLARKSON RD
ELLISVILLE, MO 63011
St. Louis County (636) 230-5050
BARBARA ANNE O'BRIEN DO
Family Medicine (Adult Medicine)
225 CLARKSON RD
ELLISVILLE, MO 63011
St. Louis County (636) 685-7715
EILEEN HOLT NP
Nurse Practitioner (Family)
225 CLARKSON RD
ELLISVILLE, MO 63011
St. Louis County (636) 685-7715

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 Clarissa Allen's NPI number?

The NPI number for Clarissa Allen is 1952513541. It was assigned to this individual provider in the NPPES registry on May 4, 2007. The provider is also known as Clarissa Gesmundo MD.

Where is Clarissa Allen located?

Clarissa Allen practices at 225 Clarkson Rd, Ellisville, MO 63011. The listed phone number is (636) 230-5050.

What is Clarissa Allen's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Clarissa Allen enrolled in Medicare?

No. Clarissa Allen has opted out of Medicare through October 1, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Clarissa Allen was last updated on February 11, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.