2026 NPPES data Neurology Physician NPI 1073908869 MD
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ABDULLAH ALSHAMMAA, MD

Neurology Physician in LOMA LINDA, 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
457
Medicare Part D claims · 117 beneficiaries · Neurology Physician avg: 1K
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$117.77
5 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ABDULLAH ALSHAMMAA, MD filed 457 Medicare Part D claims in 2023 as a Neurology Physician in LOMA LINDA, California, prescribing 89% generic.

457
Part D claims, 2023
89%
generic prescribing
Likely
board-certified (heuristic)

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.

ABDULLAH ALSHAMMAA, MD's Medicare Part D volume vs every U.S. prescriber

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

457 Top 38% higher than 62% 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%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. 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

Board certification likely (heuristic — not verified)

ABDULLAH ALSHAMMAA, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 4 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about ABDULLAH ALSHAMMAA, MD?

Quality data not reported

NPI registry status

Active

Issued 03/30/2015

NPI 1073908869

Primary specialty

Neurology Physician

Mid-sized

19,866 US NPIs in this specialty

Medicare Part D claims

457 65% vs specialty avg

2023 prescription claims

Specialty avg: 1,309

Specialty distribution in California

How Neurology Physician compares to other specialties among California providers

California providers

Neurology Physician share within California

1. Neurology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Neurology Physician share within California

Specialty board-certification context

Estimated specialty board-certified rate — Neurology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Neurology Physician ABMS/AOA estimate

Est. board-certified rate (Neurology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Neurology Physician) — 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).

ABDULLAH ALSHAMMAA, MD appears in the CMS NPPES registry as a Neurology Physician provider holding MD credentials at 11370 ANDERSON ST STE B100, LOMA LINDA, CA, 92354, with a listed phone of (909) 558-2880. NPI 1073908869 was issued on 03/30/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ALSHAMMAA 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 457 prescription claims written by this provider, covering 117 Medicare beneficiaries and totaling roughly $61K in drug spend, split 11% brand-name and 89% generic by claim count. 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.

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

11370 ANDERSON ST STE B100
LOMA LINDA, CA 92354

Provider Details

NPI 1073908869
Specialty Neurology Physician
Credentials MD
Gender Male
NPI Issued 03/30/2015

Hospital and facility affiliations

Facilities where ABDULLAH ALSHAMMAA, MD 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.

CEP AMERICA - NEUROLOGY PC
WEST COVINA, CA
EMERGENCY AND ACUTE CARE MEDICAL CORPORATION
CHULA VISTA, CA
FACULTY PHYSICIANS AND SURGEONS OF LLUSM
LOMA LINDA, CA
MSU HEALTH CARE INC.
EAST LANSING, MI

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 ABDULLAH ALSHAMMAA, MD. Source: openpaymentsdata.cms.gov.

Total received

$118

Largest payer

UCB, 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 ABDULLAH ALSHAMMAA, MD. To verify ABDULLAH ALSHAMMAA, 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

ABDULLAH ALSHAMMAA, MD — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 457 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.

457
Total Claims
$61K
Total Drug Cost
117
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
646
Total Day Supply
18,727
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$45K
Generic Drug Cost
$15K

Patient Demographics

Average Patient Age
68.5 years
Avg HCC Risk Score
1.65
Gender Split
53% female / 47% male
Age Distribution
<65: 28, 65-74: 51, 75-84: 27, 85+: 11

Top Prescribed Drugs (Medicare Part D)

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

What ABDULLAH ALSHAMMAA, 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
67
Donepezil Hcl
44
Carbidopa-Levodopa
Carbidopa/Levodopa
41
Lacosamide
33
Levetiracetam
27
Emgality Pen
Galcanezumab-Gnlm
22
Amitriptyline Hcl
21
Topiramate
20
Divalproex Sodium
13
Phenobarbital
11

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

Neurology Physician Overview

How ABDULLAH ALSHAMMAA, MD 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

ABDULLAH ALSHAMMAA, MD's 457 claims are below 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 ALSHAMMAA.

Compare Neurology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ABDULLAH ALSHAMMAA, MD's specialty?
ABDULLAH ALSHAMMAA, MD specializes in Neurology Physician and practices in LOMA LINDA, California. Credentials: MD.
How much does ABDULLAH ALSHAMMAA, MD prescribe under Medicare Part D?
In 2023, ABDULLAH ALSHAMMAA, MD wrote 457 Medicare Part D claims totaling $61K in drug costs for 117 beneficiaries.
Where is ABDULLAH ALSHAMMAA, MD located?
ABDULLAH ALSHAMMAA, MD is located at 11370 ANDERSON ST STE B100, LOMA LINDA, CA, 92354. Phone: (909) 558-2880.
What is ABDULLAH ALSHAMMAA, MD's NPI number?
ABDULLAH ALSHAMMAA, MD's National Provider Identifier (NPI) is 1073908869, issued on 03/30/2015.
Does ABDULLAH ALSHAMMAA, MD prescribe more brand-name or generic drugs?
ABDULLAH ALSHAMMAA, MD's prescribing is 11% brand-name and 89% generic drugs by claim count, with $45K in brand drug costs.
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 ABDULLAH ALSHAMMAA, MD prescribe most often?
Based on 2023 Medicare Part D data, ABDULLAH ALSHAMMAA, MD's most frequently prescribed drugs include Gabapentin, Donepezil Hcl, Carbidopa-Levodopa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ABDULLAH ALSHAMMAA, MD accept Medicare?
ABDULLAH ALSHAMMAA, MD appears in CMS Medicare data with 457 Part D claims and 117 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ABDULLAH ALSHAMMAA, MD's credentials?
ABDULLAH ALSHAMMAA, MD's NPI is 1073908869 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