John Wanwig, MD
NPI 1639360936 · Psychiatry Physician · Tacoma, WA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Wanwig, MD is a Psychiatry Physician provider in Tacoma, WA (NPI 1639360936).
Provider details
- NPI number
- 1639360936
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 12582 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 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
167 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 167 | $90 |
Typical Medicare-allowed amounts for these services range $90–$90 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 41 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clonazepam | 226 | 25 |
| Alprazolam | 159 | 17 |
| Mirtazapine | 156 | 22 |
| Quetiapine Fumarate | 133 | 16 |
| Risperidone | 121 | 14 |
| Buspirone Hcl | 100 | 18 |
| Lorazepam | 85 | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$210 across 10 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
- 2007-08-05
- Last updated
- 2026-05-10
Frequently asked questions
- What is John Wanwig's NPI number?
- John Wanwig's National Provider Identifier (NPI) is 1639360936, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Wanwig's specialty?
- John Wanwig is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is John Wanwig located?
- John Wanwig's practice location on file with NPPES is 1901 So Union, Tacoma, WA 98405.
- What is John Wanwig's phone number?
- The practice phone number listed in the NPPES registry for John Wanwig is (253) 272-3031.
- Does John Wanwig accept Medicare?
- John Wanwig is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Wanwig's NPI active?
- Yes — John Wanwig's NPI (1639360936) is active in the NPPES registry as of the last update on 2026-05-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.