Sean Wollaston, M.D.
NPI 1316921075 · Specialist · North Hollywood, CA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sean Wollaston, M.D. is a Specialist provider in North Hollywood, CA (NPI 1316921075).
Provider details
- NPI number
- 1316921075
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A63797 (CA)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
5,431 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,821 | $143 |
| Administration of Non-Hormonal Anti-Neoplastic Chemotherapy Under Skin Or Into Muscle96401 | 1,221 | $86 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 794 | $9 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 659 | $18 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 320 | $157 |
| Aspiration And/Or Injection of Fluid Large Joint Using Ultrasound Guidance |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 62 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 297 | 37 |
| Methotrexate Sodiumbrand: Methotrexate | 250 | 52 |
| Prednisone | 139 | 36 |
| Gabapentin | 130 | 26 |
| Tramadol Hcl | 89 | 19 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 87 | 18 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,538 across 145 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-05
- Last updated
- 2011-09-26
Frequently asked questions
- What is Sean Wollaston's NPI number?
- Sean Wollaston's National Provider Identifier (NPI) is 1316921075, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sean Wollaston's specialty?
- Sean Wollaston is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Sean Wollaston located?
- Sean Wollaston's practice location on file with NPPES is 12660 Riverside Dr, North Hollywood, CA 91607-3429.
- What is Sean Wollaston's phone number?
- The practice phone number listed in the NPPES registry for Sean Wollaston is (818) 980-7010.
- Does Sean Wollaston accept Medicare?
- Sean Wollaston is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sean Wollaston's NPI active?
- Yes — Sean Wollaston's NPI (1316921075) is active in the NPPES registry as of the last update on 2011-09-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.