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DR. DOROTHY F MERRITT M.D.
NPI 1881698579
Internal Medicine in La Marque, TX

Active since June 09, 2005PECOS Enrolled
6608 GULF FWY STE 100, LA MARQUE, TX 77568(409) 655-2770(844) 234-6011 Get Directions Write a Review

NPPES record last updated: June 5, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 5, 2024, Feb 9, 2023 (2 updates tracked since 2023).

About Dr. Dorothy F Merritt M.d. NPPES

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

DR. DOROTHY F MERRITT M.D. (NPI 1881698579) is an individual internal medicine provider in La Marque, Texas, licensed in Texas (G9878) and active in the NPI registry since June 2005. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1881698579
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. DOROTHY F MERRITTCredential: M.D.
Location Address6608 GULF FWY STE 100La Marque, TX 77568-4095
Mailing Address6608 Gulf Fwy Ste 100La Marque, TX 77568-4095 · (409) 655-2770 · Fax (844) 234-6011
Phone(409) 655-2770
Fax(844) 234-6011
Sole ProprietorNo
Enumeration DateJune 9, 2005
Last NPPES UpdateJune 5, 20242 updates tracked since enumeration
NPPES CertifiedJune 5, 2024
✔ NPI 1881698579 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in TX · G9878
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedFamily MedicineTaxonomy 207Q00000X · License G9878 (TX)
6608 GULF FWY STE 100, La Marque, TX 77568
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Other Identifiers 1

Medicaid127993703TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Dorothy F Merritt M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

2

Medicare enrollment records show Dorothy Merritt reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Aline Medical Center PLLC
3.8 mi
Physical Medicine & Rehabilitation
350 FM 517 RD W
Dickinson, TX 77539
  • Reassigned Medicare billing, Texas enrollment
  • 4 clinicians in this Medicare group
NPI 1255058194 (281) 337-3337
St. Elizabeth Physician Group, PLLC
3.9 mi
Family Medicine
676 FM 517 RD W
Dickinson, TX 77539
  • Reassigned Medicare billing, Texas enrollment
  • 10 clinicians in this Medicare group
NPI 1659852234 (713) 482-4535

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 2

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.

Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490
Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.
17 services12 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.
13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77568 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
$131.16 typical visit price
range $57.19 – $173.07
Typical copayment $32.79 (range $14.29 – $43.26)
Most-billed visit code 99204
Established Patient
$100.90 typical visit price
range $18.45 – $141.36
Typical copayment $25.22 (range $4.61 – $35.34)
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.

Reported Quality Measures

e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
95%10,361 patients4/55-star benchmark: 99%
Health Information Exchange
The MIPS eligible clinician that transitions or refers their patient to another setting of care or health care clinician (1) uses CEHRT to create a summary of care record; and (2) electronically transmits such summary to a receiving health care clinician for…
72%1,046 patients4/55-star benchmark: 88%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
99%945 patients4/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
51%3,855 patients3/55-star benchmark: 97%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
100%3,855 patients5/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
60%3,855 patients3/55-star benchmark: 89%
View, Download, or Transmit (VDT)
At least one patient seen by the MIPS eligible clinician during the performance period (or patient-authorized representative) views, downloads or transmits their health information to a third party during the performance period.
50%3,855 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 8

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
13 suppliers35 claims131 services$5.59 avg. paid by Medicare
Pillow for use on nasal cannula type interface, replacement only, pair A7033
DME-Other DME · category DE001N
5 suppliers15 claims82 services$12.80 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
7 suppliers20 claims20 services$48.67 avg. paid by Medicare
Headgear used with positive airway pressure device A7035
DME-Other DME · category DE001N
6 suppliers13 claims13 services$15.18 avg. paid by Medicare
Tubing used with positive airway pressure device A7037
DME-Other DME · category DE001N
5 suppliers19 claims19 services$10.08 avg. paid by Medicare
Filter, disposable, used with positive airway pressure device A7038
DME-Other DME · category DE001N
8 suppliers25 claims146 services$1.76 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES

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

BAY AREA TRANSITIONAL CLINIC PLLC
Internal Medicine
6608 GULF FWY STE 100
LA MARQUE, TX 77568
Galveston County (409) 655-2770

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 Dorothy Merritt's NPI number?

The NPI number for Dorothy Merritt is 1881698579. It was assigned to this individual provider in the NPPES registry on June 9, 2005.

Where is Dorothy Merritt located?

Dorothy Merritt practices at 6608 Gulf Fwy Ste 100, La Marque, TX 77568. The listed phone number is (409) 655-2770.

What is Dorothy Merritt's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Dorothy Merritt enrolled in Medicare?

Yes. Dorothy Merritt is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Dorothy Merritt's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Dorothy Merritt reassigns Medicare benefits to 2 organizations: Aline Medical Center PLLC (Dickinson, TX) and St. Elizabeth Physician Group, PLLC (Dickinson, 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 Dorothy Merritt's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Dorothy Merritt accept?

Health plans from Blue Cross and Blue Shield of Texas list Dorothy Merritt 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.

When was this NPI record last updated?

The NPPES record for Dorothy Merritt was last updated on June 5, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.