Doctor profile · Federal record
Dr. John Griffin, M.D.
Colon & Rectal Surgery Physician (CMS: Surgical Oncology) · Colon & Rectal Surgery Physician · Colon & Rectal Surgery Physician · Loma Linda, CA
- NPI 1821014903
- Accepts Medicare
- 29 yrs in practice
- Licensed in 3 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
11370 Anderson St Ste 2100
Loma Linda, CA 923543450
(909) 558-2822 - Mailing address
-
11175 Campus St Rm 21111
Loma Linda, CA 923501700
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- October 21, 2025
- Year of graduation
- 1997 — 29 yrs since
- Specialty taxonomy
- 208C00000X — NUCC code
- State licenses (3)
- California #C202417 · Washington #MD60664479 · Utah #5306253-1205
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1821014903. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
213
Distinct HCPCS
6
Medicare allowed
$29,935
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 53 | 43 | $136 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 52 | 32 | $95 | |
46600 |
Diagnostic exam of anus using an endoscope | 36 | 28 | $141 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 31 | 31 | $182 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 27 | 27 | $125 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 14 | 14 | $267 |
In context: peer comparison
Among 3 peers in Loma Linda Colon & Rectal Surgery Physician, average services per provider: 48. This provider delivers 4.4× the peer median.Open Payments
Industry payments received
All-time total
$669
Transactions
5
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Stryker Corporation | 1 | $172.59 | |
| Innovation Technologies INC | 1 | $145.15 | |
| Davol INC. | 1 | $125.76 | |
| Myriad Genetic Laboratories, INC. | 1 | $115.61 | |
| Intuitive Surgical, INC. | 1 | $110.36 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
124
Patients
88
Total drug cost
$4,788
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 43 | 42 | $3,336 |
| Lidocaine-Prilocaine (Lidocaine/Prilocaine) | Brand | 24 | 15 | $453 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 20 | 20 | $416 |
| Metronidazole | Generic | 13 | 11 | $39 |
| Cephalexin | Generic | 12 | 0 | $244 |
| Procto-MED Hc (Hydrocortisone) | Brand | 12 | 0 | $301 |
Frequently asked questions
What is Dr. John Griffin's medical specialty?
Dr. John Griffin practices Colon & Rectal Surgery Physician in Loma Linda, CA.
Where does Dr. John Griffin practice?
Dr. John Griffin practices at 11370 Anderson St Ste 2100, Loma Linda, CA 923543450. Office phone: 9095582822.
What is Dr. John Griffin's NPI?
Dr. John Griffin's National Provider Identifier (NPI) is 1821014903, issued by NPPES.
Does Dr. John Griffin accept Medicare assignment?
Yes. Dr. John Griffin accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Griffin 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); Diagnostic exam of anus using an endoscope (HCPCS 46600). Source: CMS Medicare Physician & Other Practitioners file.