Doctor profile · Federal record

Dr. Ross Mamaril, FNP

Family Nurse Practitioner (CMS: Nurse Practitioner) · Chicago, IL

  • NPI 1043845027
  • Accepts Medicare
  • MIPS 64.6 / 100 · 2023
  • 7 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4815 S Western Blvd
Chicago, IL 606094067
(773) 927-4200
Mailing address
5132 N Elston Ave
Chicago, IL 606302429

Credentials & registration

NPPES · NUCC
NPI registered
March 2020 — 6 yrs on file
Year of graduation
2019 — 7 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State license (1)
Illinois #209.020575

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1043845027. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,740
Distinct HCPCS
6
Medicare allowed
$158,370
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 982 389 $93
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes 486 250 $65
99306 Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 144 144 $160
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 79 24 $94
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes 27 27 $117
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes 22 14 $66

In context: peer comparison

Among 231 peers in this city , average services per provider: 226. This provider delivers 7.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,467
Patients
211
Total drug cost
$60,422
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 467 69 $5,575
Amlodipine Besylate Generic 145 29 $1,265
Hydralazine Hcl Generic 133 24 $2,355
Furosemide Generic 127 29 $1,132
Hydrochlorothiazide Generic 113 20 $950
Farxiga (Dapagliflozin Propanediol) Brand 87 11 $24,845
Losartan Potassium Generic 83 18 $789
Metoprolol Succinate Generic 54 11 $969
Metoprolol Tartrate Generic 51 0 $367
Entresto (Sacubitril/Valsartan) Brand 46 0 $15,923

Frequently asked questions

Auto-generated from federal data
What is Dr. Ross Mamaril's medical specialty?
Dr. Ross Mamaril practices Family Nurse Practitioner in Chicago, IL.
Where does Dr. Ross Mamaril practice?
Dr. Ross Mamaril practices at 4815 S Western Blvd, Chicago, IL 606094067. Office phone: 7739274200.
What is Dr. Ross Mamaril's NPI?
Dr. Ross Mamaril's National Provider Identifier (NPI) is 1043845027, issued by NPPES.
Does Dr. Ross Mamaril accept Medicare assignment?
Yes. Dr. Ross Mamaril accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ross Mamaril 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.