Doctor profile · Federal record
Dr. John Heffernan, DO
Internal Medicine Physician (CMS: Internal Medicine) · Walla Walla, WA
- NPI 1750818019
- Accepts Medicare
- MIPS 93.6 / 100 · 2023
- 9 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
380 Chase Ave
Walla Walla, WA 993622924
(509) 897-5836
fax (509) 897-5743
Credentials & registration
- NPI registered
- May 2017 — 9 yrs on file
- Profile last updated
- September 5, 2024
- Year of graduation
- 2017 — 9 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Washington #OP61434635
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1750818019. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
182
Distinct HCPCS
6
Medicare allowed
$18,226
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 75 | 41 | $97 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 42 | 31 | $141 | |
99442 |
Telephone medical discussion with physician, 11-20 minutes | 18 | 15 | $100 | |
36415 |
Insertion of needle into vein for collection of blood sample | 17 | 14 | $5 | |
G0438 |
Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit | 16 | 16 | $181 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 14 | 14 | $16 |
In context: peer comparison
Among 10 peers in Walla Walla Internal Medicine Physician, average services per provider: 199. This provider delivers 0.9× the peer median.Open Payments
Industry payments received
All-time total
$134
Transactions
7
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| GlaxoSmithKline, LLC. | 3 | $47.98 | |
| Medacta USA, INC. | 1 | $26.75 | |
| Mylan Specialty L.P. | 1 | $23.38 | |
| Pfizer INC. | 1 | $21.06 | |
| Lilly USA, LLC | 1 | $15.32 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,161
Patients
391
Total drug cost
$392,418
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 111 | 42 | $1,679 |
| Ozempic (Semaglutide) | Brand | 104 | 24 | $129,341 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 97 | 33 | $2,752 |
| Amlodipine Besylate | Generic | 93 | 39 | $923 |
| Mounjaro (Tirzepatide) | Brand | 84 | 14 | $90,740 |
| Rosuvastatin Calcium | Generic | 82 | 32 | $4,296 |
| Jardiance (Empagliflozin) | Brand | 79 | 21 | $92,944 |
| Metformin Hcl | Generic | 79 | 34 | $764 |
| Levothyroxine Sodium | Generic | 75 | 29 | $1,508 |
| Losartan Potassium | Generic | 74 | 31 | $1,182 |
Hospital affiliations
Frequently asked questions
What is Dr. John Heffernan's medical specialty?
Dr. John Heffernan practices Internal Medicine Physician in Walla Walla, WA.
Where does Dr. John Heffernan practice?
Dr. John Heffernan practices at 380 Chase Ave, Walla Walla, WA 993622924. Office phone: 5098975836.
What is Dr. John Heffernan's NPI?
Dr. John Heffernan's National Provider Identifier (NPI) is 1750818019, issued by NPPES.
Does Dr. John Heffernan accept Medicare assignment?
Yes. Dr. John Heffernan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Heffernan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Telephone medical discussion with physician (HCPCS 99442). Source: CMS Medicare Physician & Other Practitioners file.