Doctor profile · Federal record

Dr. Lois Waetjen, M.D.

Obstetrics & Gynecology Physician (CMS: Obstetrics/Gynecology) · Sacramento, CA

  • NPI 1356324974
  • Accepts Medicare
  • 31 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4860 Y St Ste 2500
Sacramento, CA 958172307
(916) 734-6900
Mailing address
4860 Y St, OB/GYN, Suite 2500, Acc
Sacramento, CA 958172307

Credentials & registration

NPPES · NUCC
NPI registered
November 2005 — 21 yrs on file
Profile last updated
April 6, 2018
Year of graduation
1995 — 31 yrs since
Specialty taxonomy
207V00000X — NUCC code
State license (1)
California #A68623
Medicaid
CA #00A686230

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1356324974. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
60
Distinct HCPCS
2
Medicare allowed
$4,477
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 49 38 $69
99214 Established patient office or other outpatient visit, 30-39 minutes 11 11 $101

In context: peer comparison

Among 22 peers in this city , average services per provider: 35. This provider delivers 1.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
152
Patients
34
Total drug cost
$14,277
Drug Type Claims Patients Total cost
Estradiol Generic 41 18 $8,111
Gabapentin Generic 41 0 $483
Clobetasol Propionate Generic 22 16 $908
Triamcinolone Acetonide Generic 13 0 $48
Yuvafem (Estradiol) Brand 13 0 $2,715
Estradiol (Once Weekly) (Estradiol) Brand 11 0 $950
Valacyclovir (Valacyclovir Hcl) Brand 11 0 $1,062

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Lois Waetjen's medical specialty?
Dr. Lois Waetjen practices Obstetrics & Gynecology Physician in Sacramento, CA.
Where does Dr. Lois Waetjen practice?
Dr. Lois Waetjen practices at 4860 Y St Ste 2500, Sacramento, CA 958172307. Office phone: 9167346900.
What is Dr. Lois Waetjen's NPI?
Dr. Lois Waetjen's National Provider Identifier (NPI) is 1356324974, issued by NPPES.
Does Dr. Lois Waetjen accept Medicare assignment?
Yes. Dr. Lois Waetjen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Lois Waetjen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.