2026 NPPES data Adult Health Nurse Practitioner NPI 1891193694 MD
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MARCELLINA NWOSU, MD

Adult Health Nurse Practitioner in PALM SPRINGS, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
3K
Medicare Part D claims · 479 beneficiaries · Adult Health Nurse Practitioner avg: 1K
Generic prescribing
97%
generic claims · 3% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$28.34
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MARCELLINA NWOSU, MD filed 3,122 Medicare Part D claims in 2023 as a Adult Health Nurse Practitioner in PALM SPRINGS, California, prescribing 97% generic.

3K
Part D claims, 2023
97%
generic prescribing
$28.34
industry payments (Sunshine Act)

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.

MARCELLINA NWOSU, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

3,122 Top 11% higher than 89% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about MARCELLINA NWOSU, MD?

Quality data not reported

NPI registry status

Active

Issued 12/10/2014

NPI 1891193694

Primary specialty

Adult Health Nurse Practitioner

Mid-sized

29,492 US NPIs in this specialty

Medicare Part D claims

3,122 160% vs specialty avg

2023 prescription claims

Specialty avg: 1,201

Specialty distribution in California

How Adult Health Nurse Practitioner compares to other specialties among California providers

California providers

Adult Health Nurse Practitioner share within California

1. Adult Health Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Adult Health Nurse Practitioner share within California

Specialty board-certification context

Estimated specialty board-certified rate — Adult Health Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Adult Health Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Adult Health Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Adult Health Nurse Practitioner) — ABMS / AOA estimate

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).

MARCELLINA NWOSU, MD appears in the CMS NPPES registry as a Adult Health Nurse Practitioner provider holding MD credentials at 555 E TACHEVAH DR STE 2E204, PALM SPRINGS, CA, 92262, with a listed phone of (575) 395-7246. NPI 1891193694 was issued on 12/10/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what NWOSU most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 3,122 prescription claims written by this provider, covering 479 Medicare beneficiaries and totaling roughly $129K in drug spend, split 3% brand-name and 97% generic by claim count, with an opioid prescribing rate of 27.8%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Adult Health Nurse Practitioner is a mid-sized specialty nationwide, with 29,492 enrolled providers across 55 states and an average of 1,201 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

555 E TACHEVAH DR STE 2E204
PALM SPRINGS, CA 92262

Provider Details

NPI 1891193694
Specialty Adult Health Nurse Practitioner
Credentials MD
Gender Female
NPI Issued 12/10/2014

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 MARCELLINA NWOSU, MD. Source: openpaymentsdata.cms.gov.

Total received

$28

Largest payer

Organon 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 MARCELLINA NWOSU, MD. To verify MARCELLINA NWOSU, 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 · Generic-heavy

MARCELLINA NWOSU, MD — brand share 3.0%
Specialty average (est.)

3% brand-name claims vs 97% generic, on 3,122 2023 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 2023.

3,122
Total Claims
$129K
Total Drug Cost
479
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,276
Total Day Supply
91,168
Brand vs Generic
3% brand / 97% generic
Brand Drug Cost
$41K
Generic Drug Cost
$88K
Opioid Claims
868 (27.8% rate)

Patient Demographics

Average Patient Age
68.8 years
Avg HCC Risk Score
1.67
Gender Split
63% female / 37% male
Age Distribution
<65: 152, 65-74: 196, 75-84: 94, 85+: 37

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What MARCELLINA NWOSU, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Gabapentin
370
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
305
Pregabalin
304
Tramadol Hcl
249
Duloxetine Hcl
196
Diclofenac Sodium
177
Tizanidine Hcl
152
Acetaminophen-Codeine
Acetaminophen With Codeine
149
Baclofen
126
Cyclobenzaprine Hcl
112

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Adult Health Nurse Practitioner Overview

How MARCELLINA NWOSU, MD fits within the Adult Health Nurse Practitioner landscape nationally.

29,492
Adult Health Nurse Practitioner Providers in US
55
States with Adult Health Nurse Practitioner
1,201
Avg Claims per Provider

MARCELLINA NWOSU, MD's 3,122 claims are above the specialty average of 1,201.

Nearby Adult Health Nurse Practitioner Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as NWOSU.

Compare Adult Health Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARCELLINA NWOSU, MD's specialty?
MARCELLINA NWOSU, MD specializes in Adult Health Nurse Practitioner and practices in PALM SPRINGS, California. Credentials: MD.
How much does MARCELLINA NWOSU, MD prescribe under Medicare Part D?
In 2023, MARCELLINA NWOSU, MD wrote 3,122 Medicare Part D claims totaling $129K in drug costs for 479 beneficiaries.
Where is MARCELLINA NWOSU, MD located?
MARCELLINA NWOSU, MD is located at 555 E TACHEVAH DR STE 2E204, PALM SPRINGS, CA, 92262. Phone: (575) 395-7246.
What is MARCELLINA NWOSU, MD's NPI number?
MARCELLINA NWOSU, MD's National Provider Identifier (NPI) is 1891193694, issued on 12/10/2014.
Does MARCELLINA NWOSU, MD prescribe more brand-name or generic drugs?
MARCELLINA NWOSU, MD's prescribing is 3% brand-name and 97% generic drugs by claim count, with $41K in brand drug costs.
Does MARCELLINA NWOSU, MD prescribe opioids?
Yes, MARCELLINA NWOSU, MD had 868 opioid claims in 2023 with an opioid prescribing rate of 27.8%.
How many Adult Health Nurse Practitioner providers are there in the US?
There are 29,492 Adult Health Nurse Practitioner providers across 55 states in the US. The average Adult Health Nurse Practitioner provider writes 1,201 Medicare Part D claims per year.
What drugs does MARCELLINA NWOSU, MD prescribe most often?
Based on 2023 Medicare Part D data, MARCELLINA NWOSU, MD's most frequently prescribed drugs include Gabapentin, Hydrocodone-Acetaminophen, Pregabalin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARCELLINA NWOSU, MD accept Medicare?
MARCELLINA NWOSU, MD appears in CMS Medicare data with 3,122 Part D claims and 479 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARCELLINA NWOSU, MD's credentials?
MARCELLINA NWOSU, MD's NPI is 1891193694 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

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.
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