NPI registry status
Active
2026 NPPES data Obstetrics & Gynecology Physician NPI 1659454221 MD
Verify on CMS → Patrick Spalding, MD
Obstetrics & Gynecology Physician in Pismo 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 45,074 in 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
489
Medicare Part D claims · 150 beneficiaries · Obstetrics & Gynecology Physician avg: 188
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Patrick Spalding, MD filed 489 Medicare Part D claims in 2024 as an Obstetrics & Gynecology Physician in Pismo Beach, California, prescribing 90% generic.
- 489
- Part D claims, 2024
- 90%
- generic prescribing
- ≥61st
- 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 Patrick Spalding, MD
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 1659454221), first enumerated 10/24/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 489 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
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Patrick Spalding, MD'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 1659454221 · Obstetrics & Gynecology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-LIGHT · BOOK-MID · PHOTO-ENUM
- NPI-10 1659454221
- ENUM-LEGACY 2006
- TAX-MID 45K Obstetrics &
- RX-LIGHT 489
- BOOK-MID 5,004 in California
- PHOTO-ENUM Joanne Richards · 2006
Patrick Spalding, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
489 ≥ 61st percentile 61% 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-eligible specialty (heuristic, not verified)
Patrick Spalding, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Patrick Spalding, MD?
Quality data not reportedPrimary specialty
Obstetrics & Gynecology Physician
Medicare Part D claims
489 160% vs specialty avg
Specialty distribution in California
How 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 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 | 1659454221 |
|---|---|
| Specialty | Obstetrics & Gynecology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 10/24/2006 |
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 Patrick Spalding, MD. To verify Patrick Spalding, MD'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.
Brand vs generic prescribing mix · Typical
Patrick Spalding, MD - brand share 10.0%
Obstetrics & Gynecology Physician average
10% brand-name claims vs 90% generic, on 489 2024 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
489
Total Claims
$24K
Total Drug Cost
150
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,122.867
- Total Day Supply
- 32,253
- Brand vs Generic
- 10% brand / 90% generic
- Brand Drug Cost
- $17K
- Generic Drug Cost
- $7K
Patient Demographics
- Average Patient Age
- 71.7 years
- Avg HCC Risk Score
- 0.69
- 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 Patrick Spalding, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Estradiol
Estradiol
295 claims
- Progesterone 25
Progesterone
25 claims
- Valacyclovir 16
Valacyclovir
16 claims
- Estring 13
Estring
13 claims
- Clobetasol Propion… 12
Clobetasol Propionate
12 claims
- Fluconazole 12
Fluconazole
12 claims
- Zolpidem Tartrate 12
Zolpidem Tartrate
12 claims
| Drug | Claims |
|---|---|
| Estradiol | 295 |
| Progesterone Progesterone, Micronized | 25 |
| Valacyclovir Valacyclovir Hcl | 16 |
| Estring Estradiol | 13 |
| Clobetasol Propionate | 12 |
| Fluconazole | 12 |
| Zolpidem Tartrate | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Obstetrics & Gynecology Physician Overview
How Patrick Spalding, MD fits within the Obstetrics & Gynecology Physician landscape nationally.
45,074
Obstetrics & Gynecology Physician Providers in US
56
States with Obstetrics & Gynecology Physician
188
Avg Claims per Provider
Patrick Spalding, MD's 489 claims are above the specialty average of 188.
Nationwide Obstetrics & Gynecology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Spalding, 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 Obstetrics & Gynecology Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Spalding.
One of 5,004 Obstetrics & Gynecology Physician providers enrolled in California, 5 are shown here.
Dr. Ingrid Aalami
MD
San Jose, CA
Dr. Avisa Abaian- Eagar
M.D.
Orange, CA
Dr. Derek Abbassi
MD
Walnut Creek, CA
Dr. Nicole Abell
DO
Ventura, CA
Zachary Abelson
Los Angeles, CA
Compare Obstetrics & Gynecology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Patrick Spalding, MD's specialty? ▼
Patrick Spalding, MD specializes in Obstetrics & Gynecology Physician and practices in Pismo Beach, California. Credentials: MD.
How much does Patrick Spalding, MD prescribe under Medicare Part D? ▼
In 2024, Patrick Spalding, MD wrote 489 Medicare Part D claims totaling $24K in drug costs for 150 beneficiaries.
Where is Patrick Spalding, MD located? ▼
Patrick Spalding, MD is located at 2 JAMES WAY, Pismo Beach, CA, 93449. Phone: (805) 773-3060.
What is Patrick Spalding, MD's NPI number? ▼
Patrick Spalding, MD's National Provider Identifier (NPI) is 1659454221, issued on 10/24/2006.
Does Patrick Spalding, MD prescribe more brand-name or generic drugs? ▼
Patrick Spalding, MD's prescribing is 10% brand-name and 90% generic drugs by claim count, with $17K in brand drug costs.
How many Obstetrics & Gynecology Physician providers are there in the US? ▼
There are 45,074 Obstetrics & Gynecology Physician providers across 56 states in the US. The average Obstetrics & Gynecology Physician provider writes 188 Medicare Part D claims per year.
What drugs does Patrick Spalding, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Patrick Spalding, MD's most frequently prescribed drugs include Estradiol, Progesterone, Valacyclovir. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Patrick Spalding, MD accept Medicare? ▼
Patrick Spalding, MD appears in CMS Medicare data with 489 Part D claims and 150 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Patrick Spalding, MD's credentials? ▼
Patrick Spalding, MD's NPI is 1659454221 with credentials MD. 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.