Doctor profile · Federal record

Dr. Tatiana Mamantov, MD

Emergency Medicine Physician (CMS: Emergency Medicine) · Castro Valley, CA

  • NPI 1629069059
  • Accepts Medicare
  • MIPS 73.6 / 100 · 2023
  • 42 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
20103 Lake Chabot RD
Castro Valley, CA 945465341
(209) 342-2300
fax (209) 524-4240
Mailing address
4301 Northstar Way
Modesto, CA 953569262

Credentials & registration

NPPES · NUCC
NPI registered
November 2005 — 21 yrs on file
Profile last updated
July 30, 2008
Year of graduation
1984 — 42 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
California #G85179
Medicaid
CA #00G851790

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1629069059. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
23
Distinct HCPCS
1
Medicare allowed
$3,169
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 23 23 $138

In context: peer comparison

Among 9 peers in Castro Valley Emergency Medicine Physician, average services per provider: 94. This provider delivers 0.2× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Tatiana Mamantov's medical specialty?
Dr. Tatiana Mamantov practices Emergency Medicine Physician in Castro Valley, CA.
Where does Dr. Tatiana Mamantov practice?
Dr. Tatiana Mamantov practices at 20103 Lake Chabot RD, Castro Valley, CA 945465341. Office phone: 2093422300.
What is Dr. Tatiana Mamantov's NPI?
Dr. Tatiana Mamantov's National Provider Identifier (NPI) is 1629069059, issued by NPPES.
Does Dr. Tatiana Mamantov accept Medicare assignment?
Yes. Dr. Tatiana Mamantov accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Tatiana Mamantov commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.