NPI registry status
Active
2026 NPPES data Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician NPI 1427293125 D.O.
Verify on CMS → Darlene Morrissey, D.O.
Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician in Los Angeles, 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
276
Medicare Part D claims · 106 beneficiaries · Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician avg: 661
Generic prescribing
59%
generic claims · 41% 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
Darlene Morrissey, D.O. filed 276 Medicare Part D claims in 2024 as a Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician in Los Angeles, California, prescribing 59% generic.
- 276
- Part D claims, 2024
- 59%
- generic prescribing
- ≥48th
- 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 Darlene Morrissey, D.O.
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 1427293125), first enumerated 12/09/2008.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 276 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 Darlene Morrissey, D.O.'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 1427293125 · Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician
NPI-10 · ENUM-MID · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1427293125
- ENUM-MID 2008
- TAX-NARROW 621
- RX-LIGHT 276
- BOOK-THIN 61 in California
- PHOTO-ENUM Jill Danford · 2008
Darlene Morrissey, D.O.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
276 ≥ 48th percentile 48% 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)
Darlene Morrissey, D.O. 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 Darlene Morrissey, D.O.?
Quality data not reportedPrimary specialty
Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician
Medicare Part D claims
276 58% 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 | 1427293125 |
|---|---|
| Specialty | Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician |
| Credentials | D.O. |
| Gender | Female |
| NPI Issued | 12/09/2008 |
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 Darlene Morrissey, D.O.. To verify Darlene Morrissey, D.O.'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 · Above average
Darlene Morrissey, D.O. - brand share 41.0%
Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician average
41% brand-name claims vs 59% generic, on 276 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.
276
Total Claims
$59K
Total Drug Cost
106
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 508.667
- Total Day Supply
- 13,690
- Brand vs Generic
- 41% brand / 59% generic
- Brand Drug Cost
- $51K
- Generic Drug Cost
- $8K
- Antibiotic Claims
- 44
Patient Demographics
- Average Patient Age
- 71.6 years
- Avg HCC Risk Score
- 0.87
- 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 Darlene Morrissey, D.O. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Premarin
Premarin
105 claims
- Estradiol
Estradiol
63 claims
- Nitrofurantoin Mon… 21
Nitrofurantoin Mono-Macro
21 claims
- Ibuprofen 17
Ibuprofen
17 claims
- Metronidazole 16
Metronidazole
16 claims
- Yuvafem 11
Yuvafem
11 claims
| Drug | Claims |
|---|---|
| Premarin Estrogens, Conjugated | 105 |
| Estradiol | 63 |
| Nitrofurantoin Mono-Macro Nitrofurantoin Monohyd/M-Cryst | 21 |
| Ibuprofen | 17 |
| Metronidazole | 16 |
| Yuvafem Estradiol | 11 |
* 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 Darlene Morrissey, D.O. 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
Darlene Morrissey, D.O.'s 276 claims are below 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 Morrissey, both outside California so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2008)
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 Morrissey.
One of 61 Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician providers enrolled in California, 5 are shown here.
Frequently Asked Questions
What is Darlene Morrissey, D.O.'s specialty? ▼
Darlene Morrissey, D.O. specializes in Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician and practices in Los Angeles, California. Credentials: D.O..
How much does Darlene Morrissey, D.O. prescribe under Medicare Part D? ▼
In 2024, Darlene Morrissey, D.O. wrote 276 Medicare Part D claims totaling $59K in drug costs for 106 beneficiaries.
Where is Darlene Morrissey, D.O. located? ▼
Darlene Morrissey, D.O. is located at 1513 S GRAND AVE, Los Angeles, CA, 90015. Phone: (213) 742-6400.
What is Darlene Morrissey, D.O.'s NPI number? ▼
Darlene Morrissey, D.O.'s National Provider Identifier (NPI) is 1427293125, issued on 12/09/2008.
Does Darlene Morrissey, D.O. prescribe more brand-name or generic drugs? ▼
Darlene Morrissey, D.O.'s prescribing is 41% brand-name and 59% generic drugs by claim count, with $51K in brand drug costs.
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 Darlene Morrissey, D.O. prescribe most often? ▼
Based on 2024 Medicare Part D data, Darlene Morrissey, D.O.'s most frequently prescribed drugs include Premarin, Estradiol, Nitrofurantoin Mono-Macro. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Darlene Morrissey, D.O. accept Medicare? ▼
Darlene Morrissey, D.O. appears in CMS Medicare data with 276 Part D claims and 106 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Darlene Morrissey, D.O.'s credentials? ▼
Darlene Morrissey, D.O.'s NPI is 1427293125 with credentials D.O.. 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.