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CARNAI SIMPSON M.D.
NPI 1437531118
Family Medicine in Kingwood, TX

Active since June 18, 2015PECOS EnrolledAccepts Medicare Assignment
1710 W LAKE HOUSTON PKWY STE 260, KINGWOOD, TX 77339(281) 440-5300(855) 308-0364 Get Directions Write a Review

NPPES record last updated: April 15, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 15, 2026, Apr 10, 2025, Feb 24, 2025 and 3 more (6 updates tracked since 2016).

About Carnai Simpson M.d. NPPES

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

CARNAI SIMPSON M.D. (NPI 1437531118) is an individual family medicine provider in Kingwood, Texas, licensed in Texas (R8990) and active in the NPI registry since June 2015. She is enrolled in Medicare PECOS, is affiliated with Memorial Hermann Northeast Hospital, and maintains a secondary practice location in Kingwood.

NPPES Registry Identity

NPI1437531118
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameCARNAI SIMPSONCredential: M.D.
Location Address1710 W LAKE HOUSTON PKWY STE 260Kingwood, TX 77339-2674
Mailing Address1710 W Lake Houston Pkwy Ste 260Kingwood, TX 77339-2674 · (281) 440-5300 · Fax (855) 308-0364
Phone(281) 440-5300
Fax(855) 308-0364
Sole ProprietorNo
Medical School CMSOtherGraduated 2014
Enumeration DateJune 18, 2015
Last NPPES UpdateApril 15, 20266 updates tracked since enumeration
NPPES CertifiedApril 15, 2026
✔ NPI 1437531118 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Licenses✔ Licensed in TX · R8990✔ Licensed in TX · BP10053386
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.
1710 W LAKE HOUSTON PKWY STE 260, Kingwood, TX 77339
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Secondary Practice Location 1

Location 122751 Professional Dr Ste 270Kingwood, TX 77339-6028 · Phone (281) 440-5300 · Fax (855) 308-0364

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections 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

Carnai Simpson M.d. 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 ID547513525
PECOS Enrollment IDI20181020000399
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 Carnai Simpson reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Rajiv Agarwal MD PA
6.9 mi
Rehabilitation, Cardiac Facilities
18835 MCKAY DR STE 300
Humble, TX 77338
  • Reassigned Medicare billing, Texas enrollment
  • 24 clinicians in this Medicare group
NPI 1598407017 (831) 644-8930
David P Ellent PLLC
17 mi
Pulmonary Disease
2255 E MOSSY OAKS RD STE 500
Spring, TX 77389
  • Reassigned Medicare billing, Texas enrollment
  • 107 clinicians in this Medicare group
NPI 1245777440 (281) 440-5300
Memorial Hermann Medical Group
48 mi
Family Medicine
6631 W CROSS CREEK BEND LN STE 200
Fulshear, TX 77441
  • Reassigned Medicare billing, Texas enrollment
  • 1,235 clinicians in this Medicare group
NPI 1003985102 (832) 658-5750

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.

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.
100 services44 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.
26 services23 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
24 services24 patients
Advance care planning, first 30 minutes 99497
Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.
11 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Memorial Hermann Northeast Hospital

Acute Care Hospitals · Humble, TX
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450684
Location18951 Memorial NorthHumble, TX 77338 · Harris County
Emergency services Birthing friendly

Hca Houston Healthcare Kingwood

Acute Care Hospitals · Kingwood, TX
3/5 CMS rating
OwnershipProprietary
CMS Certification Number450775
Location22999 Us Hwy 59Kingwood, TX 77325 · Harris County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77339 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
$90.40 typical visit price
range $58.24 – $176.98
Typical copayment $22.60 (range $14.56 – $44.24)
Most-billed visit code 99203
Established Patient
$102.71 typical visit price
range $18.60 – $143.93
Typical copayment $25.67 (range $4.65 – $35.98)
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.

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 Carnai Simpson's NPI number?

The NPI number for Carnai Simpson is 1437531118. It was assigned to this individual provider in the NPPES registry on June 18, 2015.

Where is Carnai Simpson located?

Carnai Simpson practices at 1710 W Lake Houston Pkwy Ste 260, Kingwood, TX 77339. The listed phone number is (281) 440-5300.

What is Carnai Simpson's specialty?

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

Is Carnai Simpson enrolled in Medicare?

Yes. Carnai Simpson 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 Carnai Simpson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Carnai Simpson reassigns Medicare benefits to 3 organizations: Rajiv Agarwal MD PA (Humble, TX), David P Ellent PLLC (Spring, TX) and Memorial Hermann Medical Group (Fulshear, TX). 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 Carnai Simpson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Carnai Simpson accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan and 5 other insurers list Carnai Simpson 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 Carnai Simpson affiliated with any hospitals?

According to CMS data, Carnai Simpson is affiliated with Memorial Hermann Northeast Hospital and Hca Houston Healthcare Kingwood.

When was this NPI record last updated?

The NPPES record for Carnai Simpson was last updated on April 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.