Doctor profile · Federal record

Dr. Patricia Anne Atal

Internal Medicine Physician (CMS: Internal Medicine) · Student in an Organized Health Care Education/Training Program · Walnut Creek, CA

  • NPI 1598384737
  • Accepts Medicare
  • 9 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1425 S Main St
Walnut Creek, CA 945965318
(925) 295-4000
Additional location
1411 E 31St St Fl 2
Oakland, CA 946021018
(510) 437-5039
fax (510) 535-7313
Mailing address
1460 Maria Ln Ste 330
Walnut Creek, CA 945968822

Credentials & registration

NPPES · NUCC
NPI registered
April 2020 — 6 yrs on file
Profile last updated
August 19, 2025
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A181513

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1598384737. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
50
Distinct HCPCS
1
Medicare allowed
$8,741
HCPCS Description Services Patients Avg allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 50 48 $175

In context: peer comparison

Among 44 peers in Walnut Creek Internal Medicine Physician, average services per provider: 260. This provider delivers 0.2× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
34
Patients
0
Total drug cost
$1,013
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 21 0 $668
Amlodipine Besylate Generic 13 0 $345

Frequently asked questions

Auto-generated from federal data
What is Dr. Patricia Anne Atal's medical specialty?
Dr. Patricia Anne Atal practices Internal Medicine Physician in Walnut Creek, CA.
Where does Dr. Patricia Anne Atal practice?
Dr. Patricia Anne Atal practices at 1425 S Main St, Walnut Creek, CA 945965318. Office phone: 9252954000.
What is Dr. Patricia Anne Atal's NPI?
Dr. Patricia Anne Atal's National Provider Identifier (NPI) is 1598384737, issued by NPPES.
Does Dr. Patricia Anne Atal accept Medicare assignment?
Yes. Dr. Patricia Anne Atal accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Patricia Anne Atal commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.