Doctor profile · Federal record

Dr. WILLIAM LONGFELLOW, M.D.

Internal Medicine Physician · Internal Medicine Physician · RANCHO MIRAGE, CA

  • NPI 1669886545
  • 12 yrs on file
  • Licensed in 2 states
  • Male
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
71780 SAN JACINTO DR STE H1
RANCHO MIRAGE, CA 922705518
(760) 340-6777
Additional location
1500 Lansdowne Ave
Darby, PA 190231200
(610) 237-4000

Credentials & registration

NPPES · NUCC
NPI registered
June 2014 — 12 yrs on file
Profile last updated
December 23, 2020
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
California #A169852 · Virginia #0101262895

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1669886545. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
971
Distinct HCPCS
7
Medicare allowed
$92,657
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 584 210 $81
99239 Hospital discharge day management, more than 30 minutes 153 149 $119
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 92 92 $134
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 63 21 $51
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 41 40 $176
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 27 23 $123
99238 Hospital discharge day management, 30 minutes or less 11 11 $84

In context: peer comparison

Among 21 peers in this city , average services per provider: 181. This provider delivers 5.4× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
614
Patients
252
Total drug cost
$55,437
Drug Type Claims Patients Total cost
Amlodipine Besylate Generic 67 32 $704
Levothyroxine Sodium Generic 63 18 $994
Furosemide Generic 55 18 $322
Eliquis (Apixaban) Brand 51 23 $46,551
Pantoprazole Sodium Generic 46 26 $739
Atorvastatin Calcium Generic 44 25 $793
Losartan Potassium Generic 44 17 $595
Tamsulosin Hcl Generic 43 16 $837
Gabapentin Generic 39 13 $486
Rosuvastatin Calcium Generic 38 14 $716