● Active Type 1 · Individual

DR. Marian Von-Maszewski, M.D.

Anesthesiology·Houston, TX· NPI 1790773067 · Enumerated 2005 · 20 years on NPI

Von-Maszewski is 1 of 1291 anesthesiology providers in Houston and 1 of 6023 in Texas.

NPI age

20 years

Enumerated 2005-10-11

Primary specialty

Anesthesiology

Licensed in

1 state

Status

Active

No deactivations on record

Last NPPES update

2012-07-13

Source: monthly bulk 2026-05

Sole proprietor

Yes

Solo practice on file

How this provider compares

Across 6023 active anesthesiology providers in Texas.

NPI age

20 years

↑ 2 yr above median (18 yr)

State licenses

1 state

12% of peers hold multiple states

Subspecialties

31% of peers hold subspecialties

NPI lifetime · 2005 → 2026

2005-10Enumerated in NPPES

2005 2026

Where they practice

Practice location

6410 Fannin St, Suite 1500

Houston, TX 770303000

📞 7137907700

Mailing address

Po Box 1831

Richmond, TX 774060046

Specialties

Allopathic & Osteopathic Physicians › Anesthesiology

Anesthesiology Primary

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk...

TX license #L8223 taxonomy 207L00000X

Identifiers

Type	Value	Notes
01 (TX)	8AA125	BLUE CROSS BLUE SHIELD
05 (TX)	165294303
05 (TX)	165294307 (MDACC)
01 (TX)	8DF413	BCBS (MDACC)

Practice context

Part of a multi-provider practice. 415 other active providers share this practice address in NPPES.

Recently enumerated nearby: 7 new anesthesiology providers have been added in Houston in the last 180 days. See all →

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How to verify this provider

Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
Check the state license is currently active.State licensing boards publish current status; NPPES does not.
Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.