Doctor profile · Federal record
Dr. John Jernick, M.D.
Family Medicine Physician (CMS: Family Practice) · Stanford, CA
- NPI 1689739369
- Accepts Medicare
- 47 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
300 Pasteur Dr # N329
Stanford, CA 943052200
(650) 723-6963
fax (650) 498-7750 - Mailing address
-
33 Grove Dr
Portola Valley, CA 940287636
Credentials & registration
- NPI registered
- December 2006 — 20 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 1979 — 47 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- California #G-49839
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1689739369. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
406
Distinct HCPCS
6
Medicare allowed
$30,360
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 118 | 75 | $85 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 116 | 72 | $72 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 113 | 113 | $57 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 28 | 23 | $112 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 19 | 16 | $58 | |
99443 |
Telephone medical discussion with physician, 21-30 minutes | 12 | 12 | $109 |
In context: peer comparison
Among 25 peers in this city , average services per provider: 45. This provider delivers 9.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
918
Patients
253
Total drug cost
$15,439
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 198 | 63 | $2,754 |
| Amlodipine Besylate | Generic | 108 | 32 | $903 |
| Losartan Potassium | Generic | 91 | 26 | $1,402 |
| Chlorthalidone | Generic | 63 | 24 | $1,477 |
| Levothyroxine Sodium | Generic | 58 | 14 | $1,485 |
| Omeprazole | Generic | 53 | 17 | $1,050 |
| Tamsulosin Hcl | Generic | 50 | 15 | $1,656 |
| Metformin Hcl | Generic | 44 | 12 | $382 |
| Escitalopram Oxalate | Generic | 41 | 11 | $732 |
| Lisinopril | Generic | 40 | 13 | $359 |
Hospital affiliations
Frequently asked questions
What is Dr. John Jernick's medical specialty?
Dr. John Jernick practices Family Medicine Physician in Stanford, CA.
Where does Dr. John Jernick practice?
Dr. John Jernick practices at 300 Pasteur Dr # N329, Stanford, CA 943052200. Office phone: 6507236963.
What is Dr. John Jernick's NPI?
Dr. John Jernick's National Provider Identifier (NPI) is 1689739369, issued by NPPES.
Does Dr. John Jernick accept Medicare assignment?
Yes. Dr. John Jernick accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Jernick 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); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.