Doctor profile · Federal record

Dr. Kei Martin, APRN, FNP-C

Family Nurse Practitioner (CMS: Nurse Practitioner) · Tustin, CA

  • NPI 1972117992
  • Accepts Medicare
  • 7 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
140 Centennial Way
Tustin, CA 927803711
(949) 594-0446

Credentials & registration

NPPES · NUCC
NPI registered
September 2020 — 6 yrs on file
Profile last updated
September 27, 2022
Year of graduation
2019 — 7 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State license (1)
Florida #APRN11008013

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1972117992. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
329
Distinct HCPCS
10
Medicare allowed
$14,750
HCPCS Description Services Patients Avg allowed
99342 Residence visit for new patient with low level of medical decision making, per day, if using time, at least 30 minutes 66 66 $70
99348 Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes 50 45 $69
80047 Blood test, basic group of blood chemicals (calcium, ionized) 35 32 $13
85014 Red blood cell concentration measurement 34 32 $2
99341 Residence visit for new patient with straightforward medical decision making, per day, if using time, at least 15 minutes 23 23 $44
81002 Urinalysis, manual test 19 19 $3
99349 Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes 19 18 $115
36415 Insertion of needle into vein for collection of blood sample 18 17 $8
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 15 15 $14
96360 Infusion into a vein for hydration, 31-60 minutes 13 12 $32

In context: peer comparison

Among 8 peers in Tustin Family Nurse Practitioner, average services per provider: 37. This provider delivers 8.9× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
82
Patients
80
Total drug cost
$1,022
Drug Type Claims Patients Total cost
Cephalexin Generic 22 21 $306
Azithromycin Generic 13 13 $61
Doxycycline Hyclate Generic 13 13 $193
Mupirocin Generic 12 11 $140
Methylprednisolone Generic 11 11 $94
Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) Brand 11 11 $228

Frequently asked questions

Auto-generated from federal data
What is Dr. Kei Martin's medical specialty?
Dr. Kei Martin practices Family Nurse Practitioner in Tustin, CA.
Where does Dr. Kei Martin practice?
Dr. Kei Martin practices at 140 Centennial Way, Tustin, CA 927803711. Office phone: 9495940446.
What is Dr. Kei Martin's NPI?
Dr. Kei Martin's National Provider Identifier (NPI) is 1972117992, issued by NPPES.
Does Dr. Kei Martin accept Medicare assignment?
Yes. Dr. Kei Martin accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kei Martin commonly perform?
Top Medicare-reported procedures in 2023: Residence visit for new patient with low level of medical decision making (HCPCS 99342); Residence visit for established patient with low level of medical decision making (HCPCS 99348); Blood test, basic group of blood chemicals (calcium, ionized) (HCPCS 80047). Source: CMS Medicare Physician & Other Practitioners file.