NPI registry status
Active
2026 NPPES data Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician NPI 1720442106
Verify on CMS → Erryn Tappy
Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician 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 621 in Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician, 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
1K
Medicare Part D claims · 385 beneficiaries · Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician avg: 661
Industry payments
$679.33
29 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Erryn Tappy filed 1,405 Medicare Part D claims in 2024 as a Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician in Walnut Creek, California.
- 1K
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥80th
- 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 Erryn Tappy
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 1720442106), first enumerated 04/11/2016.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,405 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$679.33 in reported industry payments (29 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 Erryn Tappy'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 1720442106 · Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician
NPI-10 · ENUM-MID · TAX-NARROW · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1720442106
- ENUM-MID 2016
- TAX-NARROW 621
- RX-MID 1,405
- BOOK-THIN 61 in California
- PHOTO-ENUM Edward Kim · 2016
Erryn Tappy's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
1,405 ≥ 80th percentile 80% 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
✓
Board certification likely (heuristic, not verified)
Erryn Tappy practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Erryn Tappy?
Quality data not reportedPrimary specialty
Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician
Medicare Part D claims
1,405 113% vs specialty avg
Specialty distribution in California
How Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician 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 Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician. 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 | 1720442106 |
|---|---|
| Specialty | Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician |
| Gender | Female |
| NPI Issued | 04/11/2016 |
Hospital and facility affiliations
Facilities where Erryn Tappy 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.
John Muir Physician Network
Walnut Creek, 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 Erryn Tappy. Source: openpaymentsdata.cms.gov.
Total received
$679
Largest payer
ABBVIE INC.
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 Erryn Tappy. To verify Erryn Tappy'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.
1,405
Total Claims
$322K
Total Drug Cost
385
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,834.767
- Total Day Supply
- 76,401
- Generic Drug Cost
- $48K
- Opioid Claims
- 15 (1.1% rate)
- Antibiotic Claims
- 344
Patient Demographics
- Average Patient Age
- 76.9 years
- Avg HCC Risk Score
- 1.20
- Gender Split
- 100% female / 0% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Erryn Tappy prescribes most
Top Medicare Part D drugs by claim count, 2024
- Estradiol
Estradiol
449 claims
- Gemtesa
Gemtesa
235 claims
- Myrbetriq 168
Myrbetriq
168 claims
- Nitrofurantoin Mon… 139
Nitrofurantoin Mono-Macro
139 claims
- Cephalexin 53
Cephalexin
53 claims
- Clobetasol Propion… 49
Clobetasol Propionate
49 claims
- Sulfamethoxazole-T… 48
Sulfamethoxazole-Trimethoprim
48 claims
- Ciprofloxacin Hcl 33
Ciprofloxacin Hcl
33 claims
| Drug | Claims |
|---|---|
| Estradiol | 449 |
| Gemtesa Vibegron | 235 |
| Myrbetriq Mirabegron | 168 |
| Nitrofurantoin Mono-Macro Nitrofurantoin Monohyd/M-Cryst | 139 |
| Cephalexin | 53 |
| Clobetasol Propionate | 49 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 48 |
| Ciprofloxacin Hcl | 33 |
| Nitrofurantoin Nitrofurantoin Macrocrystal | 26 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 22 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician in CA →
All providers in California →
Compare specialties →
Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician Overview
How Erryn Tappy fits within the Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician landscape nationally.
621
Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician Providers in US
50
States with Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician
661
Avg Claims per Provider
Erryn Tappy's 1,405 claims are above the specialty average of 661.
Nationwide Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Tappy, both outside California so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2016)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Tappy.
One of 61 Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician providers enrolled in California, 5 are shown here.
Frequently Asked Questions
What is Erryn Tappy's specialty? ▼
Erryn Tappy specializes in Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician and practices in Walnut Creek, California.
How much does Erryn Tappy prescribe under Medicare Part D? ▼
In 2024, Erryn Tappy wrote 1,405 Medicare Part D claims totaling $322K in drug costs for 385 beneficiaries.
Where is Erryn Tappy located? ▼
Erryn Tappy is located at 100 N WIGET LN STE 207, Walnut Creek, CA, 94598. Phone: (925) 937-7740.
What is Erryn Tappy's NPI number? ▼
Erryn Tappy's National Provider Identifier (NPI) is 1720442106, issued on 04/11/2016.
Does Erryn Tappy prescribe opioids? ▼
Yes, Erryn Tappy had 15 opioid claims in 2024 with an opioid prescribing rate of 1.1%.
How many Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician providers are there in the US? ▼
There are 621 Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician providers across 50 states in the US. The average Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician provider writes 661 Medicare Part D claims per year.
What drugs does Erryn Tappy prescribe most often? ▼
Based on 2024 Medicare Part D data, Erryn Tappy's most frequently prescribed drugs include Estradiol, Gemtesa, Myrbetriq. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Erryn Tappy accept Medicare? ▼
Erryn Tappy appears in CMS Medicare data with 1,405 Part D claims and 385 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Erryn Tappy's credentials? ▼
Erryn Tappy's NPI is 1720442106. 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.