NPI registry status
Active
2026 NPPES data Surgical Physician Assistant NPI 1184652695 P.A.
Verify on CMS → Tiffany Waters, P.A.
Surgical Physician Assistant in Walnut Creek, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,179 in Surgical Physician Assistant, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
114
Medicare Part D claims · 71 beneficiaries · Surgical Physician Assistant avg: 316
MIPS score
79.2/100
▼ 4 pts below national avg 83.5 · Above neutral
Industry payments
$15.02
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Tiffany Waters, P.A. reported a CMS MIPS final score of 79.2/100 - below the 83.5 national average - and filed 114 Medicare Part D claims in 2023.
- 79.2/100
- MIPS score · -4 vs avg
- 114
- Part D claims, 2023
- $15.02
- industry payments (Sunshine Act)
- ≥26th
- pct among measured MIPS (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
CMS NPPES provider registry desk
NPI 1184652695 · Surgical Physician Assistant
NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-BELOW · RX-LIGHT · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1184652695
- ENUM-LEGACY 2006
- TAX-MID 16K Surgical Physician
- MIPS-BELOW 79.2/100
- RX-LIGHT 114
- BOOK-LIGHT 979 in California
- PHOTO-FINISH Collin Banning · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Waters · this pr…
Waters · this provider
79.2 MIPS pts
- Breck Wheelock ·…
Breck Wheelock
79.2 MIPS pts
- Collin Banning ·…
Collin Banning
79.2 MIPS pts
- Christy Coon · n…
Christy Coon
79.2 MIPS pts
- Trey Lockwood · …
Trey Lockwood
79.2 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Tiffany Waters, P.A.'s MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
79 ≥ 26th percentile 26% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Tiffany Waters, P.A. sits
This provider among surgical physician assistant peers
Across the 3,657 surgical physician assistant providers who report both Medicare Part D prescribing and a MIPS quality score, Tiffany Waters, P.A. writes more Part D claims than 44% of them and scores higher on MIPS quality than 26% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one surgical physician assistant peer from a representative sample of 60; the gold marker is Tiffany Waters, P.A.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Tiffany Waters, P.A.?
Near national averagePrimary specialty
Surgical Physician Assistant
Medicare Part D claims
114 64% vs specialty avg
MIPS final score
79.2/100 4.3 pts vs avg
Specialty distribution in California
How Surgical Physician Assistant compares to other specialties among California providers
Medicare quality performance, MIPS
Tiffany Waters, P.A.'s 2023 MIPS final score plotted against the Surgical Physician Assistant national average
- MIPS Final Score
- 79.2/100
- vs 83.5 national avg · 2023 performance year
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1184652695 |
|---|---|
| Specialty | Surgical Physician Assistant |
| Credentials | P.A. |
| Gender | Female |
| NPI Issued | 06/30/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
79.2264
Final Score
Measured-score avg: 83.5
86.143
Quality
47.1116
Cost
97
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Tiffany Waters, P.A. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Sonora Community Hospital
Sonora, CA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Tiffany Waters, P.A.. Source: openpaymentsdata.cms.gov.
Total received
$15
Largest payer
Bioventus LLC
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - California MBC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 - they are NOT specific to Tiffany Waters, P.A.. To verify Tiffany Waters, P.A.'s current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
114
Total Claims
$2K
Total Drug Cost
71
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 138
- Total Day Supply
- 1,883
- Brand Drug Cost
- $0
- Generic Drug Cost
- $2K
- Opioid Claims
- 16 (14.0% rate)
- Antibiotic Claims
- 68
Patient Demographics
- Average Patient Age
- 73.2 years
- Avg HCC Risk Score
- 0.99
- Gender Split
- 77% female / 23% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Amoxicillin | 48 |
| Clindamycin Hcl | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Surgical Physician Assistant Overview
How Tiffany Waters, P.A. fits within the Surgical Physician Assistant landscape nationally.
16,179
Surgical Physician Assistant Providers in US
54
States with Surgical Physician Assistant
316
Avg Claims per Provider
Tiffany Waters, P.A.'s 114 claims are below the specialty average of 316.
Nationwide Surgical Physician Assistant peers with similar MIPS or enrollment year
Two federal-record peer sets for Waters, both outside California so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (79.2 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Surgical Physician Assistant Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Waters.
One of 979 Surgical Physician Assistant providers enrolled in California, 5 are shown here.
Dr. Terri Abbott
P.A.
La Jolla, CA
Dr. Emily Abdinor
PA-C
Sacramento, CA
Dr. Jory Adam
PA-C
Rancho Santa Margarita, CA
Dr. Zulhumar Adil
PA-C
Fullerton, CA
Dr. Neil Adler
PA
San Jose, CA
Compare Surgical Physician Assistant nationally: see state-by-state distribution →
Frequently Asked Questions
What is Tiffany Waters, P.A.'s specialty? ▼
Tiffany Waters, P.A. specializes in Surgical Physician Assistant and practices in Walnut Creek, California. Credentials: P.A..
How much does Tiffany Waters, P.A. prescribe under Medicare Part D? ▼
In 2023, Tiffany Waters, P.A. wrote 114 Medicare Part D claims totaling $2K in drug costs for 71 beneficiaries.
What is Tiffany Waters, P.A.'s Medicare quality score? ▼
Tiffany Waters, P.A. has a CMS MIPS Final Score of 79.2/100 (Quality: 86.1, Cost: 47.1). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Tiffany Waters, P.A. located? ▼
Tiffany Waters, P.A. is located at 2405 SHADELANDS DR, Walnut Creek, CA, 94598. Phone: (925) 939-8585.
What is Tiffany Waters, P.A.'s NPI number? ▼
Tiffany Waters, P.A.'s National Provider Identifier (NPI) is 1184652695, issued on 06/30/2006.
Does Tiffany Waters, P.A. prescribe opioids? ▼
Yes, Tiffany Waters, P.A. had 16 opioid claims in 2023 with an opioid prescribing rate of 14.0%.
How many Surgical Physician Assistant providers are there in the US? ▼
There are 16,179 Surgical Physician Assistant providers across 54 states in the US. The average Surgical Physician Assistant provider writes 316 Medicare Part D claims per year.
What drugs does Tiffany Waters, P.A. prescribe most often? ▼
Based on 2023 Medicare Part D data, Tiffany Waters, P.A.'s most frequently prescribed drugs include Amoxicillin, Clindamycin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Tiffany Waters, P.A. accept Medicare? ▼
Tiffany Waters, P.A. appears in CMS Medicare data with 114 Part D claims and 71 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Tiffany Waters, P.A.'s credentials? ▼
Tiffany Waters, P.A.'s NPI is 1184652695 with credentials P.A.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.