Gaia Mohr-Tonachini, MMSC
NPI 1407542442 · Physician Assistant · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gaia Mohr-Tonachini, MMSC is a Physician Assistant provider in Walnut Creek, CA (NPI 1407542442).
Provider details
- NPI number
- 1407542442
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MMSC
- Sex
- Female
- Sole proprietor
- No
- License
- PA67404 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
3 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
92 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 | 50 | $86 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 22 | $73 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 20 | $61 |
Typical Medicare-allowed amounts for these services range $61–$86 (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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 86 | 32 |
| Pregabalin | 44 | 18 |
| Meloxicam | 33 | 11 |
| Oxycodone Hcl | 30 | 21 |
| Cyclobenzaprine Hcl | 30 | 18 |
| Diazepam | 27 | 25 |
| Methocarbamol | 19 | 15 |
| Tizanidine Hcl |
Practice location
Mailing address
Additional practice locations (1)
- 1601 Ygnacio Valley RdWalnut Creek, CA 94598-3122Phone: (925) 939-3000
Registry dates
- Enumerated
- 2023-04-13
- Last updated
- 2026-03-04
- Certified
- 2026-03-04
Frequently asked questions
- What is Gaia Mohr-Tonachini's NPI number?
- Gaia Mohr-Tonachini's National Provider Identifier (NPI) is 1407542442, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gaia Mohr-Tonachini's specialty?
- Gaia Mohr-Tonachini is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Gaia Mohr-Tonachini located?
- Gaia Mohr-Tonachini's practice location on file with NPPES is 323 Lennon Ln, Walnut Creek, CA 94598-2497.
- What is Gaia Mohr-Tonachini's phone number?
- The practice phone number listed in the NPPES registry for Gaia Mohr-Tonachini is (925) 430-5335.
- Does Gaia Mohr-Tonachini accept Medicare?
- Gaia Mohr-Tonachini is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gaia Mohr-Tonachini's NPI active?
- Yes — Gaia Mohr-Tonachini's NPI (1407542442) is active in the NPPES registry as of the last update on 2026-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.