Doctor profile · Federal record

Dr. Thomas Hascall, MD

Internal Medicine Physician (CMS: Internal Medicine) · Los Angeles, CA

  • NPI 1245315324
  • Accepts Medicare
  • 27 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
335 N la Brea Ave
Los Angeles, CA 900362517
(323) 634-3850
fax (323) 938-9958
Additional location
8660 Woodley Ave
North Hill, CA 91343
(818) 891-9641
fax (818) 891-9671
Mailing address
5767 W Century Blvd Ste 400
Los Angeles, CA 900455631

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
January 6, 2023
Year of graduation
1999 — 27 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A74598

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1245315324. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
822
Distinct HCPCS
9
Medicare allowed
$52,575
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 369 168 $91
36415 Insertion of needle into vein for collection of blood sample 133 86 $8
99213 Established patient office or other outpatient visit, 20-29 minutes 122 95 $60
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 80 80 $64
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 36 32 $15
90662 Influenza vaccine split virus, preservative free 27 27 $66
G0008 Administration of influenza virus vaccine 27 27 $31
90480 Admn sarscov2 vacc 1 dose 14 14 $45
91320 Sarscv2 vac 30mcg trs-suc im 14 14 $128

In context: peer comparison

Among 262 peers in Los Angeles Internal Medicine Physician, average services per provider: 160. This provider delivers 5.1× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
841
Patients
206
Total drug cost
$11,269
Drug Type Claims Patients Total cost
Amlodipine Besylate Generic 130 36 $549
Atorvastatin Calcium Generic 108 41 $1,826
Alprazolam Generic 79 12 $1,103
Simvastatin Generic 60 16 $287
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 55 0 $1,256
Losartan Potassium Generic 55 19 $830
Metformin Hcl Generic 55 16 $393
Levothyroxine Sodium Generic 51 16 $624
Lorazepam Generic 47 12 $336
Zolpidem Tartrate Generic 41 11 $377

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Hascall's medical specialty?
Dr. Thomas Hascall practices Internal Medicine Physician in Los Angeles, CA.
Where does Dr. Thomas Hascall practice?
Dr. Thomas Hascall practices at 335 N la Brea Ave, Los Angeles, CA 900362517. Office phone: 3236343850.
What is Dr. Thomas Hascall's NPI?
Dr. Thomas Hascall's National Provider Identifier (NPI) is 1245315324, issued by NPPES.
Does Dr. Thomas Hascall accept Medicare assignment?
Yes. Dr. Thomas Hascall accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Hascall commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.