Doctor profile · Federal record
Dr. William Longfellow, M.D.
Internal Medicine Physician · Rancho Mirage, CA
- NPI 1922149285
- 19 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
71780 San Jacinto Dr, Suite H-1
Rancho Mirage, CA 922705516
(760) 340-6777
fax (760) 340-1146
Credentials & registration
- NPI registered
- February 2007 — 19 yrs on file
- Profile last updated
- October 10, 2011
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A50581
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1922149285. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,347
Distinct HCPCS
8
Medicare allowed
$123,227
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 774 | 322 | $127 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 148 | 86 | $90 | |
96372 |
Injection of drug or substance under skin or into muscle | 133 | 42 | $14 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 122 | 39 | $57 | |
J3420 |
Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg | 59 | 19 | $1 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 56 | 47 | $15 | |
J1040 |
Injection, methylprednisolone acetate, 80 mg | 31 | 22 | $11 | |
69210 |
Removal of impacted ear wax | 24 | 19 | $48 |
In context: peer comparison
Among 21 peers in Rancho Mirage Internal Medicine Physician, average services per provider: 181. This provider delivers 7.4× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,788
Patients
500
Total drug cost
$148,208
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 216 | 58 | $4,027 |
| Amlodipine Besylate | Generic | 214 | 68 | $2,051 |
| Alprazolam | Generic | 199 | 55 | $1,904 |
| Atorvastatin Calcium | Generic | 175 | 51 | $2,517 |
| Irbesartan | Generic | 136 | 42 | $5,046 |
| Escitalopram Oxalate | Generic | 109 | 31 | $1,919 |
| Lorazepam | Generic | 106 | 19 | $1,284 |
| Zolpidem Tartrate | Generic | 95 | 30 | $1,140 |
| Rosuvastatin Calcium | Generic | 94 | 26 | $1,125 |
| Eliquis (Apixaban) | Brand | 84 | 21 | $120,428 |
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, Rancho Mirage, CA 922705516. Office phone: 7603406777.
What is Dr. William Longfellow's NPI?
Dr. William Longfellow's National Provider Identifier (NPI) is 1922149285, issued by NPPES.
What procedures does Dr. William Longfellow commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Injection of drug or substance under skin or into muscle (HCPCS 96372). Source: CMS Medicare Physician & Other Practitioners file.