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MARK GERARD MACGREGOR MD
NPI 1205923851
Internal Medicine in Webster, TX

Active since October 06, 2006PECOS EnrolledAccepts Medicare Assignment
1010 S PONDS DR, WEBSTER, TX 77598(713) 442-4500 Get Directions Write a Review

NPPES record last updated: June 11, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jun 11, 2021, Mar 18, 2021, Jan 11, 2017 (3 updates tracked since 2017).

About Mark Gerard Macgregor Md NPPES

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

MARK GERARD MACGREGOR MD (NPI 1205923851) is an individual internal medicine provider in Webster, Texas, licensed in Texas (H2552) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Texas Medical Branch At Galveston (1986).

NPPES Registry Identity

NPI1205923851
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMARK GERARD MACGREGORCredential: MD
Location Address1010 S PONDS DRWebster, TX 77598-1409
Mailing Address11511 Shadow Creek PkwyPearland, TX 77584-7298 · (713) 442-0000
Phone(713) 442-4500
Sole ProprietorNo
Medical School CMSUniversity Of Texas Medical Branch At GalvestonGraduated 1986
Enumeration DateOctober 6, 2006
Last NPPES UpdateJune 11, 20213 updates tracked since enumeration
NPPES CertifiedJune 11, 2021
✔ NPI 1205923851 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in TX · H2552
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.
1010 S PONDS DR, Webster, TX 77598
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Other Identifiers 3

Medicaid104746605TX
Medicaid104746607TX
Medicaid104746606TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mark Gerard Macgregor 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 ID9133103161
PECOS Enrollment IDI20040616000839
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77598 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
$134.06 typical visit price
range $58.24 – $176.98
Typical copayment $33.51 (range $14.56 – $44.24)
Most-billed visit code 99204
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.

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.

MELANIE SUZANNE WILLIAMS MD
Pediatrics
1010 S PONDS DR
WEBSTER, TX 77598
Harris County (713) 442-4300
RUSSELL JAMES DONEVANT MD
Family Medicine
1010 S PONDS DR
WEBSTER, TX 77598
Harris County (713) 442-4300
CANDACE P SIEGEL MD
Pediatrics
1010 S PONDS DR
WEBSTER, TX 77598
Harris County (713) 442-4300
DR. LEKSHMI DARAM M.D.
Pediatrics
1010 S PONDS DR
WEBSTER, TX 77598
Harris County (713) 442-4300
DENNIS L BROWN MD
Family Medicine
1010 S PONDS DR, CLEAR LAKE MEDICAL CENTER
WEBSTER, TX 77598
Harris County (713) 442-4300
SHAHNAWAZ KHAN MD
Family Medicine
1010 S PONDS DR
WEBSTER, TX 77598
Harris County (713) 442-4300
MEENA ESWARAN MD
Family Medicine
1010 S PONDS DR
WEBSTER, TX 77598
Harris County (713) 442-4300
GWENDOLYN A WILLIAMS MD
Pediatrics
1010 S PONDS DR
WEBSTER, TX 77598
Harris County (713) 442-4300

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 Mark Macgregor's NPI number?

The NPI number for Mark Macgregor is 1205923851. It was assigned to this individual provider in the NPPES registry on October 6, 2006.

Where is Mark Macgregor located?

Mark Macgregor practices at 1010 S Ponds Dr, Webster, TX 77598. The listed phone number is (713) 442-4500.

What is Mark Macgregor's specialty?

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

Is Mark Macgregor enrolled in Medicare?

Yes. Mark Macgregor 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.

What insurance does Mark Macgregor accept?

Health plans from UnitedHealthcare list Mark Macgregor 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 Mark Macgregor was last updated on June 11, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.