Doctor profile · Federal record

Dr. Robert Greer, M.D.

Pulmonary Disease Physician (CMS: Hospitalist) · Critical Care Medicine (Internal Medicine) Physician · Carmichael, CA

  • NPI 1174943146
  • Accepts Medicare
  • MIPS 90.2 / 100 · 2023
  • 12 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
6555 Coyle Ave Ste 215
Carmichael, CA 956080303
(916) 536-2442
fax (916) 536-2598
Mailing address
3400 Data Dr
Rancho Cordova, CA 956707956

Credentials & registration

NPPES · NUCC
NPI registered
April 2014 — 12 yrs on file
Profile last updated
November 22, 2023
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
207RP1001X — NUCC code
State license (1)
California #A168700

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1174943146. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
415
Distinct HCPCS
7
Medicare allowed
$67,141
HCPCS Description Services Patients Avg allowed
99291 Critical care, first 30-74 minutes 149 69 $219
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 134 76 $124
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 48 32 $82
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 41 41 $180
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 17 17 $180
31500 Emergent insertion of breathing tube into windpipe using an endoscope 13 13 $142
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 13 11 $124

In context: peer comparison

Among 5 peers in Carmichael Pulmonary Disease Physician, average services per provider: 91. This provider delivers 4.6× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Robert Greer's medical specialty?
Dr. Robert Greer practices Pulmonary Disease Physician in Carmichael, CA.
Where does Dr. Robert Greer practice?
Dr. Robert Greer practices at 6555 Coyle Ave Ste 215, Carmichael, CA 956080303. Office phone: 9165362442.
What is Dr. Robert Greer's NPI?
Dr. Robert Greer's National Provider Identifier (NPI) is 1174943146, issued by NPPES.
Does Dr. Robert Greer accept Medicare assignment?
Yes. Dr. Robert Greer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Robert Greer commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.