Doctor profile · Federal record

Dr. Melissa Frederick, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Internal Medicine Physician · Millbrae, CA

  • NPI 1033238076
  • Accepts Medicare
  • MIPS 92.6 / 100 · 2023
  • 22 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
423 Broadway, Suite 604
Millbrae, CA 940301905
(650) 732-9721
Mailing address
423 Broadway Ste 604
Millbrae, CA 940301905

Credentials & registration

NPPES · NUCC
NPI registered
March 2007 — 19 yrs on file
Profile last updated
February 21, 2015
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
California #A116626 · Michigan #4301084237

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1033238076. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,317
Distinct HCPCS
7
Medicare allowed
$284,555
HCPCS Description Services Patients Avg allowed
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 996 237 $126
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes 827 164 $88
99306 Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 293 230 $212
99497 Advance care planning, first 30 minutes 111 95 $87
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes 45 37 $156
99316 Nursing facility discharge management, more than 30 minutes 27 27 $153
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 18 15 $180

In context: peer comparison

Among 2 peers in Millbrae Internal Medicine Physician, average services per provider: 137. This provider delivers 17× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
4,513
Patients
520
Total drug cost
$134,127
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 626 78 $8,368
Levothyroxine Sodium Generic 476 43 $5,331
Furosemide Generic 410 40 $2,806
Gabapentin Generic 353 43 $5,792
Amlodipine Besylate Generic 341 43 $3,002
Metformin Hcl Generic 308 33 $2,221
Metoprolol Tartrate Generic 295 36 $2,474
Eliquis (Apixaban) Brand 274 29 $77,254
Pantoprazole Sodium Generic 247 40 $4,179
Risperidone Generic 227 16 $3,513

Frequently asked questions

Auto-generated from federal data
What is Dr. Melissa Frederick's medical specialty?
Dr. Melissa Frederick practices Internal Medicine Physician in Millbrae, CA.
Where does Dr. Melissa Frederick practice?
Dr. Melissa Frederick practices at 423 Broadway, Millbrae, CA 940301905. Office phone: 6507329721.
What is Dr. Melissa Frederick's NPI?
Dr. Melissa Frederick's National Provider Identifier (NPI) is 1033238076, issued by NPPES.
Does Dr. Melissa Frederick accept Medicare assignment?
Yes. Dr. Melissa Frederick accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Melissa Frederick commonly perform?
Top Medicare-reported procedures in 2023: Subsequent nursing facility care with moderate level of medical decision making (HCPCS 99309); Subsequent nursing facility care with straightforward level of medical decision making (HCPCS 99308); Initial nursing facility care with high level of medical decision making (HCPCS 99306). Source: CMS Medicare Physician & Other Practitioners file.