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 .
- 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
- 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
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
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 Rancho Mirage Internal Medicine Physician, average services per provider: 181. This provider delivers 5.4× the peer median.Medicare Part D · 2023
Top prescriptions
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 |
Frequently asked questions
What is Dr. William Longfellow's medical specialty?
Dr. William Longfellow practices Internal Medicine Physician in Rancho Mirage, CA.
Where does Dr. William Longfellow practice?
Dr. William Longfellow practices at 71780 San Jacinto Dr Ste H1, Rancho Mirage, CA 922705518. Office phone: 7603406777.
What is Dr. William Longfellow's NPI?
Dr. William Longfellow's National Provider Identifier (NPI) is 1669886545, issued by NPPES.
What procedures does Dr. William Longfellow commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.