WILLIAM GIESING MD
NPI 1952044992
Internal Medicine in Dallas, TX

Q: What is William Giesing's NPI number?

The NPI number for William Giesing is 1952044992. It was assigned to this individual provider in the NPPES registry on April 18, 2022.

Q: What is William Giesing's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for William Giesing was last updated on July 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.

Active since April 18, 2022PECOS EnrolledAccepts Medicare Assignment

1441 N BECKLEY AVE, DALLAS, TX 75203(214) 947-2306 Get Directions Write a Review

NPPES record last updated: July 18, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jun 20, 2025, Apr 18, 2022 (2 updates tracked since 2022).

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About William Giesing Md NPPES

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

WILLIAM GIESING MD (NPI 1952044992) is an individual internal medicine provider in Dallas, Texas, licensed in Texas (V8268) and active in the NPI registry since April 2022. He is enrolled in Medicare PECOS, is affiliated with Methodist Dallas Medical Center, and is a graduate of Southern Illinois University School Of Medicine (2022).

NPPES Registry Identity

NPI1952044992

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameWILLIAM GIESINGCredential: MD

Location Address1441 N BECKLEY AVEDallas, TX 75203-1201

Mailing Address1441 N Beckley AveDallas, TX 75203-1201

Phone(214) 947-2306

Sole ProprietorNo

Medical School CMSSouthern Illinois University School Of MedicineGraduated 2022

Enumeration DateApril 18, 2022

Last NPPES UpdateJuly 18, 20252 updates tracked since enumeration

NPPES CertifiedJuly 18, 2025

✔ NPI 1952044992 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 · V8268

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 ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

1441 N BECKLEY AVE, Dallas, TX 75203

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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

William Giesing 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 ID8628459005

PECOS Enrollment IDI20250909001758

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.

Methodist Dallas Medical Center

Acute Care Hospitals · Dallas, TX

3/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number450051

Location1441 North Beckley AvenueDallas, TX 75203 · Dallas County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75203 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

$131.01 typical visit price

range $57.18 – $172.86

Typical copayment $32.75 (range $14.29 – $43.21)

Most-billed visit code 99204

Established Patient

$100.80 typical visit price

range $18.48 – $141.20

Typical copayment $25.20 (range $4.62 – $35.30)

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.

WILLIAM COOK LANGMADE MD

Internal Medicine