NPI registry status
Active
2026 NPPES data Surgical Physician Assistant NPI 1477620227 PA-C
Verify on CMS → Shay Seitz, PA-C
Surgical Physician Assistant in Seal Beach, 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 16,380 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
862
Medicare Part D claims · 323 beneficiaries · Surgical Physician Assistant avg: 341
Industry payments
$21.91
1 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Shay Seitz, PA-C filed 862 Medicare Part D claims in 2024 as a Surgical Physician Assistant in Seal Beach, California.
- 862
- Part D claims, 2024
- $21.91
- industry payments (Sunshine Act)
- ≥72nd
- pct by Part D claim volume (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.
Federal trust snapshot
What official records show about Shay Seitz, PA-C
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1477620227), first enumerated 11/29/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 862 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
4 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$21.91 in reported industry payments (1 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Shay Seitz, PA-C's individual license status. Verify directly with the state medical board.
Source: MBC annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1477620227 · Surgical Physician Assistant
NPI-10 · ENUM-LEGACY · TAX-MID · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1477620227
- ENUM-LEGACY 2006
- TAX-MID 16K Surgical Physician
- RX-LIGHT 862
- BOOK-LIGHT 992 in California
- PHOTO-ENUM Patricia Hilligoss,… · 2006
Shay Seitz, PA-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
862 ≥ 72nd percentile 72% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. 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 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Shay Seitz, PA-C?
Quality data not reportedPrimary specialty
Surgical Physician Assistant
Medicare Part D claims
862 153% vs specialty avg
Specialty distribution in California
How Surgical Physician Assistant compares to other specialties among California providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Surgical Physician Assistant. Verify directly:
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 | 1477620227 |
|---|---|
| Specialty | Surgical Physician Assistant |
| Credentials | PA-C |
| Gender | Male |
| NPI Issued | 11/29/2006 |
Hospital and facility affiliations
Facilities where Shay Seitz, PA-C 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.
According to CMS billing records, Shay Seitz, PA-C is affiliated with 4 Medicare-billing facilities.
Healthcare Service Partners Inc
Orange, CA
Hmts Inc
Costa Mesa, CA
Kim-Orden PC
Laguna Hills, CA
Memorialcare Medical Foundation
Westminster, 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 Shay Seitz, PA-C. Source: openpaymentsdata.cms.gov.
Total received
$22
Largest payer
Baxter Healthcare
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 Shay Seitz, PA-C. To verify Shay Seitz, PA-C'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 2024.
862
Total Claims
$29K
Total Drug Cost
323
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,081.533
- Total Day Supply
- 18,378
- Generic Drug Cost
- $8K
- Opioid Claims
- 50 (5.8% rate)
- Antibiotic Claims
- 307
Patient Demographics
- Average Patient Age
- 75.1 years
- Avg HCC Risk Score
- 1.22
- Gender Split
- 64% female / 36% male
- Age Distribution
- <65: 12, 65-74: 156, 75-84: 110, 85+: 45
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Shay Seitz, PA-C prescribes most
Top Medicare Part D drugs by claim count, 2024
- Azithromycin
Azithromycin
77 claims
- Cephalexin
Cephalexin
76 claims
- Prednisone
Prednisone
76 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
42 claims
- Amoxicillin
Amoxicillin
33 claims
- Ciprofloxacin Hcl
Ciprofloxacin Hcl
32 claims
- Amoxicillin-Clavul… 26
Amoxicillin-Clavulanate Potass
26 claims
- Doxycycline Hyclate 24
Doxycycline Hyclate
24 claims
| Drug | Claims |
|---|---|
| Azithromycin | 77 |
| Cephalexin | 76 |
| Prednisone | 76 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 42 |
| Amoxicillin | 33 |
| Ciprofloxacin Hcl | 32 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 26 |
| Doxycycline Hyclate | 24 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 23 |
| Famotidine | 20 |
* 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 Shay Seitz, PA-C fits within the Surgical Physician Assistant landscape nationally.
16,380
Surgical Physician Assistant Providers in US
54
States with Surgical Physician Assistant
341
Avg Claims per Provider
Shay Seitz, PA-C's 862 claims are above the specialty average of 341.
Nationwide Surgical Physician Assistant peers with similar MIPS or enrollment year
Two federal-record peer sets for Seitz, both outside California so the neighborhoods are not geographic containment.
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 Seitz.
One of 992 Surgical Physician Assistant providers enrolled in California, 5 are shown here.
Terri Abbott
P.A.
La Jolla, CA
Jory Adam
PA-C
Greenbrae, CA
Zulhumar Adil
PA-C
Fullerton, CA
Neil Adler
PA
San Jose, CA
Jennifer Afari
PA-C
Beverly Hills, CA
Compare Surgical Physician Assistant nationally: see state-by-state distribution →
Frequently Asked Questions
What is Shay Seitz, PA-C's specialty? ▼
Shay Seitz, PA-C specializes in Surgical Physician Assistant and practices in Seal Beach, California. Credentials: PA-C.
How much does Shay Seitz, PA-C prescribe under Medicare Part D? ▼
In 2024, Shay Seitz, PA-C wrote 862 Medicare Part D claims totaling $29K in drug costs for 323 beneficiaries.
Where is Shay Seitz, PA-C located? ▼
Shay Seitz, PA-C is located at 2929 WESTMINSTER AVE UNIT 4027, Seal Beach, CA, 90740. Phone: (714) 642-6561.
What is Shay Seitz, PA-C's NPI number? ▼
Shay Seitz, PA-C's National Provider Identifier (NPI) is 1477620227, issued on 11/29/2006.
Does Shay Seitz, PA-C prescribe opioids? ▼
Yes, Shay Seitz, PA-C had 50 opioid claims in 2024 with an opioid prescribing rate of 5.8%.
How many Surgical Physician Assistant providers are there in the US? ▼
There are 16,380 Surgical Physician Assistant providers across 54 states in the US. The average Surgical Physician Assistant provider writes 341 Medicare Part D claims per year.
What drugs does Shay Seitz, PA-C prescribe most often? ▼
Based on 2024 Medicare Part D data, Shay Seitz, PA-C's most frequently prescribed drugs include Azithromycin, Cephalexin, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Shay Seitz, PA-C accept Medicare? ▼
Shay Seitz, PA-C appears in CMS Medicare data with 862 Part D claims and 323 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Shay Seitz, PA-C's credentials? ▼
Shay Seitz, PA-C's NPI is 1477620227 with credentials PA-C. 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 (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- 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 August 2026 (NPPES) / 2024 (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 August 2026.