2026 NPPES data Neurology Physician NPI 1386974756 MD
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MICHAEL BAYER, MD

Neurology Physician in ENCINITAS, 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
20
Medicare Part D claims · Neurology Physician avg: 1K
What the federal data reveals: MICHAEL BAYER, MD is a Neurology Physician ([object Object]) practicing in ENCINITAS, California with a Medicare Part D prescribing footprint of 20 claims .

What stands out: MICHAEL BAYER, MD filed 20 Medicare Part D claims in 2023 across ENCINITAS, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

MICHAEL BAYER, MD 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).

MICHAEL BAYER, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 01/07/2010

NPI 1386974756

Primary specialty

Neurology Physician

Mid-sized

19,866 US NPIs in this specialty

Medicare Part D claims

20 98% 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).

MICHAEL BAYER, MD is a Neurology Physician provider practicing in ENCINITAS, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1386974756. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

MICHAEL BAYER, MD appears in the CMS NPPES registry as a Neurology Physician provider holding MD credentials at 788 NEPTUNE AVE, ENCINITAS, CA, 92024, with a listed phone of (760) 230-2448. NPI 1386974756 was issued on 01/07/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BAYER 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 20 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $810 in drug spend. 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

788 NEPTUNE AVE
ENCINITAS, CA 92024

Provider Details

NPI 1386974756
Specialty Neurology Physician
Credentials MD
Gender Male
NPI Issued 01/07/2010

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 MICHAEL BAYER, MD. To verify MICHAEL BAYER, 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.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

20
Total Claims
$810
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
60
Total Day Supply
1,800
Brand Drug Cost
$0
Generic Drug Cost
$810

Patient Demographics

Average Patient Age
72.0 years
Avg HCC Risk Score
0.73

Neurology Physician Overview

How MICHAEL BAYER, 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

MICHAEL BAYER, MD's 20 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 BAYER.

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

Frequently Asked Questions

What is MICHAEL BAYER, MD's specialty?
MICHAEL BAYER, MD specializes in Neurology Physician and practices in ENCINITAS, California. Credentials: MD.
How much does MICHAEL BAYER, MD prescribe under Medicare Part D?
In 2023, MICHAEL BAYER, MD wrote 20 Medicare Part D claims totaling $810 in drug costs for N/A beneficiaries.
Where is MICHAEL BAYER, MD located?
MICHAEL BAYER, MD is located at 788 NEPTUNE AVE, ENCINITAS, CA, 92024. Phone: (760) 230-2448.
What is MICHAEL BAYER, MD's NPI number?
MICHAEL BAYER, MD's National Provider Identifier (NPI) is 1386974756, issued on 01/07/2010.
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.
Does MICHAEL BAYER, MD accept Medicare?
MICHAEL BAYER, MD appears in CMS Medicare data with 20 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MICHAEL BAYER, MD's credentials?
MICHAEL BAYER, MD's NPI is 1386974756 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