NPI registry status
Active
2026 NPPES data Neurology Physician NPI 1780616177 M.D.
Verify on CMS → Arnold Greenberg, M.D.
Neurology Physician in San Francisco, 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 19,866 in Neurology 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
4K
Medicare Part D claims · 540 beneficiaries · Neurology Physician avg: 1K
Industry payments
$2.7K
98 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Arnold Greenberg, M.D. filed 3,944 Medicare Part D claims in 2023 as a Neurology Physician in San Francisco, California.
- 4K
- Part D claims, 2023
- $2.7K
- 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.
Arnold Greenberg, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,944 Top 9% higher than 91% of 1,370,886 prescribers
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
◑
Board-eligible specialty (heuristic, not verified)
Arnold Greenberg, M.D. 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 Arnold Greenberg, M.D.?
Quality data not reportedPrimary specialty
Neurology Physician
Medicare Part D claims
3,944 201% vs specialty avg
Specialty distribution in California
How Neurology 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 Neurology 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).
Arnold Greenberg, M.D. appears in the CMS NPPES registry as a Neurology Physician provider holding M.D. credentials at 2299 POST ST, San Francisco, CA, 94115, with a listed phone of (415) 346-7505. NPI 1780616177 was issued on 07/07/2006.
Medicare Part D records for calendar year 2023 show 3,944 prescription claims written by this provider, covering 540 Medicare beneficiaries and totaling roughly $990K in drug spend.
Neurology Physician is a mid-sized specialty nationwide, with 19,866 enrolled providers across 54 states and an average of 1,309 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
Provider Details
| NPI | 1780616177 |
|---|---|
| Specialty | Neurology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 07/07/2006 |
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 Arnold Greenberg, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$2.7K
Largest payer
Teva Pharmaceuticals USA, 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 Arnold Greenberg, M.D.. To verify Arnold Greenberg, 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
3,944
Total Claims
$990K
Total Drug Cost
540
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 6,080
- Total Day Supply
- 180,794
- Generic Drug Cost
- $182K
Patient Demographics
- Average Patient Age
- 80.0 years
- Avg HCC Risk Score
- 1.50
- Gender Split
- 62% female / 38% male
- Age Distribution
- <65: 12, 65-74: 122, 75-84: 230, 85+: 176
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Arnold Greenberg, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Gabapentin
Gabapentin
592 claims
- Escitalopram Oxalate
Escitalopram Oxalate
319 claims
- Memantine Hcl
Memantine Hcl
306 claims
- Donepezil Hcl 232
Donepezil Hcl
232 claims
- Carbidopa-Levodopa 221
Carbidopa-Levodopa
221 claims
- Duloxetine Hcl 165
Duloxetine Hcl
165 claims
- Memantine Hcl Er 145
Memantine Hcl Er
145 claims
- Aimovig Autoinjector 141
Aimovig Autoinjector
141 claims
| Drug | Claims |
|---|---|
| Gabapentin | 592 |
| Escitalopram Oxalate | 319 |
| Memantine Hcl | 306 |
| Donepezil Hcl | 232 |
| Carbidopa-Levodopa Carbidopa/Levodopa | 221 |
| Duloxetine Hcl | 165 |
| Memantine Hcl Er Memantine Hcl | 145 |
| Aimovig Autoinjector Erenumab-Aooe | 141 |
| Emgality Pen Galcanezumab-Gnlm | 135 |
| Topiramate | 122 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Neurology Physician Overview
How Arnold Greenberg, M.D. fits within the Neurology Physician landscape nationally.
19,866
Neurology Physician Providers in US
54
States with Neurology Physician
1,309
Avg Claims per Provider
Arnold Greenberg, M.D.'s 3,944 claims are above the specialty average of 1,309.
Nearby Neurology Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Greenberg.
Dr. Venkat Raghav Aachi
MD
Thousand Oaks, CA
Dr. John Aalbers
M.D.
San Diego, CA
Dr. Puya Abbassi
D.O.
San Jose, CA
Dr. Ahmed Abdelhak
MB CHB
San Francisco, CA
Dr. Justin Abraham
M.D., M.B.A.
Santa Barbara, CA
Compare Neurology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Neurology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Arnold Greenberg, M.D.'s specialty? ▼
Arnold Greenberg, M.D. specializes in Neurology Physician and practices in San Francisco, California. Credentials: M.D..
How much does Arnold Greenberg, M.D. prescribe under Medicare Part D? ▼
In 2023, Arnold Greenberg, M.D. wrote 3,944 Medicare Part D claims totaling $990K in drug costs for 540 beneficiaries.
Where is Arnold Greenberg, M.D. located? ▼
Arnold Greenberg, M.D. is located at 2299 POST ST, San Francisco, CA, 94115. Phone: (415) 346-7505.
What is Arnold Greenberg, M.D.'s NPI number? ▼
Arnold Greenberg, M.D.'s National Provider Identifier (NPI) is 1780616177, issued on 07/07/2006.
How many Neurology Physician providers are there in the US? ▼
There are 19,866 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,309 Medicare Part D claims per year.
What drugs does Arnold Greenberg, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Arnold Greenberg, M.D.'s most frequently prescribed drugs include Gabapentin, Escitalopram Oxalate, Memantine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Arnold Greenberg, M.D. accept Medicare? ▼
Arnold Greenberg, M.D. appears in CMS Medicare data with 3,944 Part D claims and 540 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Arnold Greenberg, M.D.'s credentials? ▼
Arnold Greenberg, M.D.'s NPI is 1780616177 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
Compiled from official public sources by the PlainDoctor editorial team.