Jon Walheim, MD
Jon Walheim, MD is an Internal Medicine Physician in Doylestown, PA, registered under NPI 1801864004.
Getting there
The practice address on file is 310 FARM LANE, Doylestown, PA 18901. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| MD016235E | PA | Internal Medicine Physician primary |
This provider holds licence MD016235E issued in PA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Internal Medicine
- PAC ID
- 9436284197
- Enrollment ID
- I20100319000242
Medicare enrolment is recorded as approved under the provider type Practitioner - Internal Medicine. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Internal Medicine covers
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs. NUCC Health Care Provider Taxonomy, code 207R00000X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1801864004 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 14, 2006 |
| Last updated | Feb 17, 2017 |
| Status | Active |
| Sole proprietor | No |
| Credential | MD |
| Practice address |
310 FARM LANE Doylestown, PA 18901 (215) 348-3990 Fax (215) 348-7705 |
| Mailing address |
310 FARM LN Doylestown, PA 18901 |
| Other identifiers |
CK4397
· Other 001435061 · Other 21198960001 · Other 21198960001 · Other 21198960001 · Other 000636928 · Medicaid (PA) 001435061 · Other 2119896001 · Other 2119896001 · Other 470888939 · Other 007302 · Other 007302 · Other 1058223 · Other 4708888939 · Other P60272318 · Other 470888939 · Other PC0138 · Other 4708888939 · Other P551605 · Other |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 8 | 0 | 1 | 8 | 6 | 4 | 0 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 0 | 1 | 7 | 6 | 8 | 0 | 0 |
Sum = 56 · next multiple of 10 = 60 · check digit = 4 · actual last digit = 4
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.