NPI registry status
Active
2026 NPPES data Specialist NPI 1285670240 M.D.
Verify on CMS → Adam Zuber, M.D.
Specialist in Corona, 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 69,608 in Specialist, 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 · 238 beneficiaries · Specialist avg: 1K
Generic prescribing
91%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$148.24
8 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Adam Zuber, M.D. filed 1,462 Medicare Part D claims in 2023 as a Specialist in Corona, California, prescribing 91% generic.
- 1K
- Part D claims, 2023
- 91%
- generic prescribing
- $148.24
- industry payments (Sunshine Act)
- ≥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 Adam Zuber, M.D.
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 1285670240), first enumerated 06/20/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,462 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
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$148.24 in reported industry payments (8 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 Adam Zuber, M.D.'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 1285670240 · Specialist
NPI-10 · ENUM-LEGACY · TAX-MEGA · RX-MID · BOOK-MID · PHOTO-ENUM
- NPI-10 1285670240
- ENUM-LEGACY 2006
- TAX-MEGA 70K Specialist
- RX-MID 1,462
- BOOK-MID 6,672 in California
- PHOTO-ENUM Gregory Finkbeiner · 2006
Adam Zuber, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,462 ≥ 80th percentile 80% of 1,370,886 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 · 2023
What does the federal data show about Adam Zuber, M.D.?
Quality data not reportedPrimary specialty
Specialist
Medicare Part D claims
1,462 1% vs specialty avg
Specialty distribution in California
How Specialist 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 Specialist. 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 | 1285670240 |
|---|---|
| Specialty | Specialist |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 06/20/2006 |
Hospital and facility affiliations
Facilities where Adam Zuber, M.D. 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.
Riverside Medical Clinic Inc
Riverside, 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 Adam Zuber, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$148
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 Adam Zuber, M.D.. To verify Adam Zuber, M.D.'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
Adam Zuber, M.D. - brand share 5.0%
Specialist average
5% brand-name claims vs 91% generic, on 1,462 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.
1,462
Total Claims
$187K
Total Drug Cost
238
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,930
- Total Day Supply
- 86,728
- Brand vs Generic
- 5% brand / 91% generic
- Brand Drug Cost
- $120K
- Generic Drug Cost
- $66K
Patient Demographics
- Average Patient Age
- 76.1 years
- Avg HCC Risk Score
- 2.55
- Gender Split
- 61% female / 39% male
- Age Distribution
- <65: 18, 65-74: 74, 75-84: 113, 85+: 33
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Adam Zuber, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Memantine Hcl
Memantine Hcl
331 claims
- Donepezil Hcl
Donepezil Hcl
234 claims
- Gabapentin
Gabapentin
142 claims
- Carbidopa-Levodopa…
Carbidopa-Levodopa Er
133 claims
- Cyanocobalamin Inj… 99
Cyanocobalamin Injection
99 claims
- Levetiracetam 73
Levetiracetam
73 claims
- Pregabalin 56
Pregabalin
56 claims
- Primidone 37
Primidone
37 claims
| Drug | Claims |
|---|---|
| Memantine Hcl | 331 |
| Donepezil Hcl | 234 |
| Gabapentin | 142 |
| Carbidopa-Levodopa Er Carbidopa/Levodopa | 133 |
| Cyanocobalamin Injection Cyanocobalamin (Vitamin B-12) | 99 |
| Levetiracetam | 73 |
| Pregabalin | 56 |
| Primidone | 37 |
| Briviact Brivaracetam | 36 |
| Ropinirole Hcl | 31 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Specialist Overview
How Adam Zuber, M.D. fits within the Specialist landscape nationally.
69,608
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider
Adam Zuber, M.D.'s 1,462 claims are below the specialty average of 1,474.
Nationwide Specialist peers with similar MIPS or enrollment year
Two federal-record peer sets for Zuber, 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 Specialist Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Zuber.
One of 6,672 Specialist providers enrolled in California, 5 are shown here.
Adrienne Abad Santos
San Francisco, CA
Dr. Brenda Abarca
MD
Torrance, CA
Dr. Fatemeh Abbasi
PT
Van Nuys, CA
Dr. Erlinda Abcede
M.D.
Cudahy, CA
Dr. Maher Abdallah
M.D.
Palm Springs, CA
Compare Specialist nationally: see state-by-state distribution →
Frequently Asked Questions
What is Adam Zuber, M.D.'s specialty? ▼
Adam Zuber, M.D. specializes in Specialist and practices in Corona, California. Credentials: M.D..
How much does Adam Zuber, M.D. prescribe under Medicare Part D? ▼
In 2023, Adam Zuber, M.D. wrote 1,462 Medicare Part D claims totaling $187K in drug costs for 238 beneficiaries.
Where is Adam Zuber, M.D. located? ▼
Adam Zuber, M.D. is located at 21634 RETREAT PKWY, Corona, CA, 92883. Phone: (951) 493-6927.
What is Adam Zuber, M.D.'s NPI number? ▼
Adam Zuber, M.D.'s National Provider Identifier (NPI) is 1285670240, issued on 06/20/2006.
Does Adam Zuber, M.D. prescribe more brand-name or generic drugs? ▼
Adam Zuber, M.D.'s prescribing is 5% brand-name and 91% generic drugs by claim count, with $120K in brand drug costs.
How many Specialist providers are there in the US? ▼
There are 69,608 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does Adam Zuber, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Adam Zuber, M.D.'s most frequently prescribed drugs include Memantine Hcl, Donepezil Hcl, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Adam Zuber, M.D. accept Medicare? ▼
Adam Zuber, M.D. appears in CMS Medicare data with 1,462 Part D claims and 238 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Adam Zuber, M.D.'s credentials? ▼
Adam Zuber, M.D.'s NPI is 1285670240 with credentials M.D.. 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 (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
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 May 2026.