NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1134380298 MD
Verify on CMS → Michael Seibert, MD
Internal Medicine Physician in Beverly Hills, 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 172,737 in Internal Medicine 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
1K
Medicare Part D claims · 119 beneficiaries · Internal Medicine Physician avg: 3K
MIPS score
100/100
▲ 17 pts above national avg 83.5 · Exceptional
Industry payments
$1.1K
47 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Michael Seibert, MD reported a CMS MIPS final score of 100/100 - above the 83.5 national average - and filed 1,489 Medicare Part D claims in 2023.
- 100/100
- MIPS score · +17 vs avg
- 1K
- Part D claims, 2023
- Likely
- board-certified (heuristic)
- ≥92nd
- pct among measured MIPS (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 Michael Seibert, MD
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1134380298), first enumerated 06/21/2008.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,489 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 100/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Industry payment transparency
$1.1K in reported industry payments (47 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 Michael Seibert, MD'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 1134380298 · Internal Medicine Physician
NPI-10 · ENUM-MID · TAX-MEGA · MIPS-ELITE · RX-MID · BOOK-MID · PHOTO-FINISH
- NPI-10 1134380298
- ENUM-MID 2008
- TAX-MEGA 173K Internal Medicine
- MIPS-ELITE 100/100
- RX-MID 1,489
- BOOK-MID 20,046 in California
- PHOTO-FINISH Zina Al-Sabbagh · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Seibert · this p…
Seibert · this provider
100 MIPS pts
- Mishala Bateman …
Mishala Bateman
100 MIPS pts
- Zina Al-Sabbagh …
Zina Al-Sabbagh
100 MIPS pts
- Kristian Balle ·…
Kristian Balle
100 MIPS pts
- Surekha Bandlamu…
Surekha Bandlamuri
100 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Michael Seibert, MD's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
100 ≥ 92nd percentile 92% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured providers. 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 whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Michael Seibert, MD sits
This provider among internal medicine physician peers
Across the 34,612 internal medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Michael Seibert, MD writes more Part D claims than 62% of them and scores higher on MIPS quality than 93% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one internal medicine physician peer from a representative sample of 60; the gold marker is Michael Seibert, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Michael Seibert, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Michael Seibert, MD?
High performer (top quartile)Primary specialty
Internal Medicine Physician
Medicare Part D claims
1,489 45% vs specialty avg
MIPS final score
100/100 16.5 pts vs avg
Specialty distribution in California
How Internal Medicine Physician compares to other specialties among California providers
Medicare quality performance, MIPS
Michael Seibert, MD's 2023 MIPS final score plotted against the Internal Medicine Physician national average
- MIPS Final Score
- 100/100
- vs 83.5 national avg · 2023 performance year
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 | 1134380298 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/21/2008 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
100
Final Score
Measured-score avg: 83.5
78.425
Quality
100
Cost
100
Promoting Interoperability
Reporting: Group practice
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 Michael Seibert, MD. Source: openpaymentsdata.cms.gov.
Total received
$1.1K
Largest payer
ViiV Healthcare Company
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 Michael Seibert, MD. To verify Michael Seibert, 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.
1,489
Total Claims
$1.2M
Total Drug Cost
119
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,770
- Total Day Supply
- 81,710
- Generic Drug Cost
- $54K
- Antibiotic Claims
- 14
Patient Demographics
- Average Patient Age
- 64.6 years
- Avg HCC Risk Score
- 1.34
- Age Distribution
- <65: 46, 65-74: 70, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Michael Seibert, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Rosuvastatin Calcium
Rosuvastatin Calcium
141 claims
- Biktarvy
Biktarvy
94 claims
- Zolpidem Tartrate 51
Zolpidem Tartrate
51 claims
- Metformin Hcl 50
Metformin Hcl
50 claims
- Testosterone Cypio… 44
Testosterone Cypionate
44 claims
- Tivicay 43
Tivicay
43 claims
- Olmesartan Medoxomil 42
Olmesartan Medoxomil
42 claims
- Alprazolam 41
Alprazolam
41 claims
| Drug | Claims |
|---|---|
| Rosuvastatin Calcium | 141 |
| Biktarvy Bictegrav/Emtricit/Tenofov Ala | 94 |
| Zolpidem Tartrate | 51 |
| Metformin Hcl | 50 |
| Testosterone Cypionate | 44 |
| Tivicay Dolutegravir Sodium | 43 |
| Olmesartan Medoxomil | 42 |
| Alprazolam | 41 |
| Ozempic Semaglutide | 41 |
| Levothyroxine Sodium | 36 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How Michael Seibert, MD fits within the Internal Medicine Physician landscape nationally.
172,737
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
Michael Seibert, MD's 1,489 claims are below the specialty average of 2,716.
Nationwide Internal Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Seibert, both outside California so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (100 here).
Same NPPES enumeration year (2008)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Internal Medicine Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Seibert.
One of 20,046 Internal Medicine Physician providers enrolled in California, 5 are shown here.
Dr. Jacob Aaron
MD
San Francisco, CA
Dr. Alistair Aaronson
MD
Stanford, CA
Dr. Jose Abad.
MD
Sacramento, CA
Dr. Donna Abare
MD
Oakland, CA
Marce Abare
Scotts Valley, CA
Compare Internal Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Michael Seibert, MD's specialty? ▼
Michael Seibert, MD specializes in Internal Medicine Physician and practices in Beverly Hills, California. Credentials: MD.
How much does Michael Seibert, MD prescribe under Medicare Part D? ▼
In 2023, Michael Seibert, MD wrote 1,489 Medicare Part D claims totaling $1.2M in drug costs for 119 beneficiaries.
What is Michael Seibert, MD's Medicare quality score? ▼
Michael Seibert, MD has a CMS MIPS Final Score of 100/100 (Quality: 78.4, Cost: 100). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Michael Seibert, MD located? ▼
Michael Seibert, MD is located at 8820 WILSHIRE BLVD STE 110, Beverly Hills, CA, 90211. Phone: (424) 315-0776.
What is Michael Seibert, MD's NPI number? ▼
Michael Seibert, MD's National Provider Identifier (NPI) is 1134380298, issued on 06/21/2008.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,737 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Michael Seibert, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Michael Seibert, MD's most frequently prescribed drugs include Rosuvastatin Calcium, Biktarvy, Zolpidem Tartrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Michael Seibert, MD accept Medicare? ▼
Michael Seibert, MD appears in CMS Medicare data with 1,489 Part D claims and 119 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Michael Seibert, MD's credentials? ▼
Michael Seibert, MD's NPI is 1134380298 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
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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.