Quick answers
- Which hospitals does Maxwell B. Merkow work at?
- Medicare's official clinician data lists Maxwell B. Merkow at 2 hospitals: John Muir Medical Center - Concord Campus and John Muir Medical Center - Walnut Creek Campus. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Maxwell B. Merkow see patients?
- Medicare's clinician data lists 5 practice locations, including Walnut Creek, CA and Alamo, CA. Call before your visit to confirm the address.
- What is Maxwell B. Merkow's specialty?
- Medicare lists Neurosurgery as the primary specialty.
- Does Maxwell B. Merkow accept Medicare assignment?
- Medicare's clinician data says Maxwell B. Merkow may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- Does Maxwell B. Merkow offer telehealth?
- Medicare's clinician data says Maxwell B. Merkow offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Maxwell B. Merkow?
- (925) 309-5155, as listed in official Medicare / NPI Registry data.
- What is Maxwell B. Merkow's NPI number?
- 1194951723. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Maxwell B. Merkow works
Medicare's Facility Affiliation Data lists Maxwell B. Merkow at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- John Muir Medical Center - Concord CampusConcord, CA · Acute Care Hospital · CCN 050496
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA · Acute Care Hospital · CCN 050180
Practice locations
Addresses where Maxwell B. Merkow is enrolled with Medicare (CMS data updated 2026-10-02).
- 130 La Casa Via, Bldg 2 210Walnut Creek, CA 94598 (925) 309‑5155
- 130 La Casa Via, Suite 210Walnut Creek, CA 94598 (925) 309‑5155
- 1505 Saint Alphonsus WayAlamo, CA 94507 (925) 932‑6330
- 1601 Ygnacio Vly RdWalnut Creek, CA 94596 (925) 939‑3000
- 365 Lennon LnWalnut Creek, CA 94598
Group practices
Medicare enrollment lists Maxwell B. Merkow as a member of these groups (CMS data updated 2026-10-02).
- Bass Medical Group291 clinicians in the group
- John Muir Trauma Physicians Billing Service113 clinicians in the group
- Maxwell B Merkow MD a Medical Corporation4 clinicians in the group
Specialties
- Neurosurgeryprimary
Other neurosurgeons in Walnut Creek
Clinicians with the same Medicare primary specialty in Walnut Creek, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Columbia University College Of Physicians And Surgeons |
| Graduation year | 2009 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1194951723 |
| 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