Terri Grosshans, PA-C
NPI 1790904613 · Surgical Physician Assistant · Olympia, WA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Terri Grosshans, PA-C is a Surgical Physician Assistant provider in Olympia, WA (NPI 1790904613).
Provider details
- NPI number
- 1790904613
- Entity type
- Individual
- Primary specialty
- Surgical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- MA14739 (WA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
759 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 137 | $108 |
| Injection of Trigger Points, 1-2 Muscles20552 | 129 | $44 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 108 | $47 |
| Insertion of Cage Or Mesh Device to Spine Bone and Disc Space During Spine Fusion22853 | 58 | $31 |
| X-Ray of Entire Middle and Lower Spine, Minimum of 6 Views72084 | 55 | $82 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 241 | 72 |
| Oxycodone Hcl | 139 | 96 |
| Methocarbamol | 105 | 53 |
| Diclofenac Sodium | 85 | 36 |
| Cyclobenzaprine Hcl | 54 | 24 |
| Ondansetron Hcl | 35 | 32 |
| Meloxicam | 28 | 13 |
| Celecoxib | 26 |
Practice location
Mailing address
Additional practice locations (1)
- 3901 Capital Mall Dr Sw Ste BOlympia, WA 98502-8654Phone: (360) 528-8571
Registry dates
- Enumerated
- 2007-04-25
- Last updated
- 2026-06-03
- Certified
- 2026-06-03
Frequently asked questions
- What is Terri Grosshans's NPI number?
- Terri Grosshans's National Provider Identifier (NPI) is 1790904613, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Terri Grosshans's specialty?
- Terri Grosshans is listed in the NPPES registry with a primary specialty of Surgical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Terri Grosshans located?
- Terri Grosshans's practice location on file with NPPES is 3909 9th Ave Sw, Olympia, WA 98502-5134.
- What is Terri Grosshans's phone number?
- The practice phone number listed in the NPPES registry for Terri Grosshans is (360) 570-3460.
- Does Terri Grosshans accept Medicare?
- Terri Grosshans is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Terri Grosshans's NPI active?
- Yes — Terri Grosshans's NPI (1790904613) is active in the NPPES registry as of the last update on 2026-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.