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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MAREK WALCZAK M.D.
NPI 1083840375
Hospitalist in Plainview, TX

Active since June 01, 2009PECOS EnrolledAccepts Medicare Assignment
2601 DIMMITT RD, PLAINVIEW, TX 79072(806) 296-5531 Get Directions Write a Review

NPPES record last updated: July 1, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 31, 2019, Mar 31, 2016 (2 updates tracked since 2016).

About Marek Walczak M.d. NPPES

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

MAREK WALCZAK M.D. (NPI 1083840375) is an individual hospitalist provider in Plainview, Texas, licensed in Texas (N0537) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS, is affiliated with Covenant Hospital Plainview, and is a graduate of Other (1988).

NPPES Registry Identity

NPI1083840375
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameMAREK WALCZAKCredential: M.D.
Location Address2601 DIMMITT RDPlainview, TX 79072-1833
Mailing Address1781 Spyglass Dr, Apt 246Austin, TX 78746-6890 · (203) 906-5389
Phone(806) 296-5531
Sole ProprietorYes
Medical School CMSOtherGraduated 1988
Enumeration DateJune 1, 2009
Last NPPES UpdateJuly 1, 20262 updates tracked since enumeration
NPPES CertifiedJuly 1, 2026
✔ NPI 1083840375 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License✔ Licensed in TX · N0537
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Also ListedInternal MedicineTaxonomy 207R00000X · License N0537 (TX)
2601 DIMMITT RD, Plainview, TX 79072
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Imperial Insurance Companies, Inc., Molina Healthcare and more.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

Marek Walczak 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 ID547313926
PECOS Enrollment IDI20090803000235
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.

Hospital Affiliations CMS Care Compare

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

Covenant Hospital Plainview

Acute Care Hospitals · Plainview, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450539
Location2601 Dimmitt RdPlainview, TX 79072 · Hale County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 79072 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
$126.40 typical visit price
range $54.84 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$97.05 typical visit price
range $17.52 – $136.11
Typical copayment $24.26 (range $4.38 – $34.02)
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

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
88%81 patients4/55-star benchmark: 100%
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.

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.

METHODIST HOSPITAL PLAINVIEW TEXAS
General Acute Care Hospital
2601 DIMMITT RD
PLAINVIEW, TX 79072
Hale County (806) 296-5531
JENNIFER SEPEDA FNP
Nurse Practitioner (Family)
2601 DIMMITT RD, SUITE 104
PLAINVIEW, TX 79072
Hale County (806) 291-0297
HALE COUNTY ANESTHESIA ASSOCIATES, PLLC
Anesthesiology
2601 DIMMITT RD
PLAINVIEW, TX 79072
Hale County (806) 291-3304
DR. COMLAVI TOSSOU MD
Internal Medicine
2601 DIMMITT RD
PLAINVIEW, TX 79072
Hale County (806) 296-5531
SEAROBIN INPATIENT SERVICES PLLC
Internal Medicine
2601 DIMMITT RD
PLAINVIEW, TX 79072
Hale County (469) 401-2386
METHODIST HOSPITAL PLAINVIEW TEXAS
Clinic/Center (Ambulatory Surgical)
2601 DIMMITT RD
PLAINVIEW, TX 79072
Hale County (806) 296-5531
CINDY TRAN D.O
Internal Medicine
2601 DIMMITT RD
PLAINVIEW, TX 79072
Hale County (303) 476-3654
SALLIE MICHELLE NOLEN FNP
Nurse Practitioner (Family)
2601 DIMMITT RD, SUITE 102
PLAINVIEW, TX 79072
Hale County (806) 293-8561

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 Marek Walczak's NPI number?

The NPI number for Marek Walczak is 1083840375. It was assigned to this individual provider in the NPPES registry on June 1, 2009.

Where is Marek Walczak located?

Marek Walczak practices at 2601 Dimmitt Rd, Plainview, TX 79072. The listed phone number is (806) 296-5531.

What is Marek Walczak's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Marek Walczak enrolled in Medicare?

Yes. Marek Walczak 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 Marek Walczak accept?

Health plans from Blue Cross and Blue Shield of Texas, Imperial Insurance Companies, Inc., Molina Healthcare and Oscar Insurance Company list Marek Walczak 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 Marek Walczak affiliated with any hospitals?

According to CMS data, Marek Walczak is affiliated with Covenant Hospital Plainview.

When was this NPI record last updated?

The NPPES record for Marek Walczak was last updated on July 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 40 days 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.