Quick answers
- Which hospitals does John Lamm work at?
- Medicare's official clinician data lists John Lamm at 4 hospitals: Riverside Doctors' Hospital of Williamsburg, Riverside Regional Medical Center, Riverside Walter Reed Hospital and Sentara Careplex Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Lamm see patients?
- Medicare's clinician data lists 2 practice locations, including Williamsburg, VA and Newport News, VA. Call before your visit to confirm the address.
- What is John Lamm's specialty?
- Medicare lists Neurosurgery as the primary specialty.
- Does John Lamm accept Medicare assignment?
- Yes. Medicare's clinician data says John Lamm accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does John Lamm offer telehealth?
- Medicare's clinician data says John Lamm offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for John Lamm?
- (757) 220-6823, as listed in official Medicare / NPI Registry data.
- What is John Lamm's NPI number?
- 1518302017. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John Lamm works
Medicare's Facility Affiliation Data lists John Lamm at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Riverside Doctors' Hospital of WilliamsburgWilliamsburg, VA · Acute Care Hospital · CCN 490143
- Riverside Regional Medical CenterNewport News, VA · Acute Care Hospital · CCN 490052
- Riverside Walter Reed HospitalGloucester, VA · Acute Care Hospital · CCN 490130
- Sentara Careplex HospitalHampton, VA · Acute Care Hospital · CCN 490093
Practice locations
Addresses where John Lamm is enrolled with Medicare (CMS data updated 2026-10-02).
- 120 Kings Way, Suite 2600Williamsburg, VA 23185 (757) 220‑6823
- 12200 Warwick Blvd, Suite 410Newport News, VA 23601 (757) 534‑5200
Group practices
Medicare enrollment lists John Lamm as a member of this group (CMS data updated 2026-10-02).
- Riverside Physician Services Inc797 clinicians in the group
Specialties
- Neurosurgeryprimary
Other neurosurgeons in Virginia
Clinicians with the same Medicare primary specialty in Virginia — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2013 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1518302017 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians