William Berg, M.D.
NPI 1568461507 · Neurology Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Berg, M.D. is a Neurology Physician provider in Seattle, WA (NPI 1568461507).
Provider details
- NPI number
- 1568461507
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD00038474 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
220 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 89 | $124 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 56 | $180 |
| Critical Care, First 30-74 Minutes99291 | 29 | $220 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 27 | $82 |
| Telephone, Internet, Or Electronic Health Record Assessment and Management With Written Report By Consulting Physician, at Least 5 Minutes99451 | 19 | $36 |
Typical Medicare-allowed amounts for these services range $36–$220 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (1)
- 550 17th AveSeattle, WA 98122-5788Phone: (206) 320-2176Fax: (206) 320-2451
Registry dates
- Enumerated
- 2005-07-20
- Last updated
- 2021-10-19
- Certified
- 2021-10-19
Frequently asked questions
- What is William Berg's NPI number?
- William Berg's National Provider Identifier (NPI) is 1568461507, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Berg's specialty?
- William Berg is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is William Berg located?
- William Berg's practice location on file with NPPES is 515 Minor Ave, Seattle, WA 98104.
- What is William Berg's phone number?
- The practice phone number listed in the NPPES registry for William Berg is (206) 386-9500.
- Does William Berg accept Medicare?
- William Berg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Berg's NPI active?
- Yes — William Berg's NPI (1568461507) is active in the NPPES registry as of the last update on 2021-10-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.