Howard R Marcus, MD

Internal medicine physician in Austin, Texas · NPI 1255347514

Howard Marcus is one of 491 internal medicine physicians practicing in Austin, Texas. Howard Marcus practices with Austin Regional Clinic PA.

Registry record (NPPES)

NPI: 1255347514
Type: Type 1 · Individual
Primary taxonomy: Internal Medicine · 207R00000X
Address on file: 6835 Austin Center Blvd
Austin, TX 78731-3166
(512) 346-6611
Enumerated: Jul 31, 2006
Record last updated: Apr 27, 2012
License states listed: TX

Medicare (CMS)

Enrollment: Medicare-enrolled in TX
Internal Medicine
Revalidation due: No date set by CMS

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Part D prescribing
Procedure volumes by CPT code
Group affiliations and colleagues
Full enrollment history

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Practice locations

10401 Anderson Mill Rd Suite 110B
Austin, TX 78750
(512) 250-5571
11714 Wilson Parke Ave Suite 150
Austin, TX 78726
(737) 247-7200
3816 S 1st St
Austin, TX 78704
(512) 443-1311
3828 S 1st St Arc South 1st
Austin, TX 78704
(512) 443-1311
6835 Austin Ctr Blvd
Austin, TX 78731
(512) 346-6611
15801 W SH 71 Bldg 1 Suite 100
Bee Cave, TX 78738
(737) 247-7200
151 Exchange Blvd 500 Arc Hutto
Hutto, TX 78634
(512) 846-1244
4100 Everett 400 Arc Kyle
Kyle, TX 78640
(512) 295-1333
2100 Autumn Slate Dr Suite 150
Pflugerville, TX 78660
(737) 220-7200
940 Hesters Crossing Rd
Round Rock, TX 78681
(512) 244-9024

More internal medicine physicians in Austin

Updated August 2026. Practice locations and specialty come from the CMS Doctors and Clinicians file, the registry record from NPPES, and enrollment from CMS Medicare enrollment files. NPI records are corrected at the source, through NPPES.