NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1033772546 MD, MBA
Verify on CMS → Josianne Bailey, MD, MBA
Internal Medicine Physician in Loma Linda, 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 174,792 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
3K
Medicare Part D claims · 480 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
85%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
85.2/100
▲ 2 pts above national avg 83.5 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Josianne Bailey, MD, MBA reported a CMS MIPS final score of 85.2/100 - above the 83.5 national average - and filed 3,085 Medicare Part D claims in 2024.
- 85.2/100
- MIPS score · +2 vs avg
- 3K
- Part D claims, 2024
- 85%
- 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.
Federal trust snapshot
What official records show about Josianne Bailey, MD, MBA
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 1033772546), first enumerated 04/19/2019.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 3,085 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 85.2/100 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
Hospital affiliations
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Josianne Bailey, MD, MBA'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 1033772546 · Internal Medicine Physician
NPI-10 · ENUM-RECENT · TAX-MEGA · MIPS-INLINE · RX-MID · BOOK-MID · PHOTO-FINISH
- NPI-10 1033772546
- ENUM-RECENT 2019
- TAX-MEGA 175K Internal Medicine
- MIPS-INLINE 85.2/100
- RX-MID 3,085
- BOOK-MID 20,403 in California
- PHOTO-FINISH Mojtaba Akhtari · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Bailey · this pr…
Bailey · this provider
85.2 MIPS pts
- Madalitso Chundu…
Madalitso Chundu
85.2 MIPS pts
- Mojtaba Akhtari …
Mojtaba Akhtari
85.2 MIPS pts
- Syed Ali · near
Syed Ali
85.2 MIPS pts
- Benjamin Chen · …
Benjamin Chen
85.2 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Josianne Bailey, MD, MBA'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.
85 ≥ 46th percentile 46% 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 Josianne Bailey, MD, MBA 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, Josianne Bailey, MD, MBA writes more Part D claims than 73% of them and scores higher on MIPS quality than 45% - placing this provider in the high-volume, lower-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 Josianne Bailey, MD, MBA. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Josianne Bailey, MD, MBA practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 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 Josianne Bailey, MD, MBA?
High performer (top quartile)Primary specialty
Internal Medicine Physician
Medicare Part D claims
3,085 11% vs specialty avg
MIPS final score
85.2/100 1.7 pts vs avg
Specialty distribution in California
How Internal Medicine Physician compares to other specialties among California providers
Medicare quality performance, MIPS
Josianne Bailey, MD, MBA's 2023 MIPS final score plotted against the Internal Medicine Physician national average
- MIPS Final Score
- 85.2/100
- 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 | 1033772546 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | MD, MBA |
| Gender | Female |
| NPI Issued | 04/19/2019 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
85.186
Final Score
Measured-score avg: 83.5
71.8166
Quality
64.5435
Cost
82
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Josianne Bailey, MD, MBA 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.
Faculty Physicians And Surgeons OF Llusm
Loma Linda, CA
Sac Health System
San Bernardino, 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).
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 Josianne Bailey, MD, MBA. To verify Josianne Bailey, MD, MBA'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
Josianne Bailey, MD, MBA - brand share 14.0%
Internal Medicine Physician average
14% brand-name claims vs 85% generic, on 3,085 2024 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 2024.
3,085
Total Claims
$253K
Total Drug Cost
480
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 6,398.967
- Total Day Supply
- 185,158
- Brand vs Generic
- 14% brand / 85% generic
- Brand Drug Cost
- $205K
- Generic Drug Cost
- $46K
- Opioid Claims
- 29 (0.9% rate)
- Antibiotic Claims
- 60
Patient Demographics
- Average Patient Age
- 71.8 years
- Avg HCC Risk Score
- 1.82
- Gender Split
- 74% female / 26% male
- Age Distribution
- <65: 63, 65-74: 232, 75-84: 139, 85+: 46
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Josianne Bailey, MD, MBA prescribes most
Top Medicare Part D drugs by claim count, 2024
- Atorvastatin Calcium
Atorvastatin Calcium
190 claims
- Levothyroxine Sodium
Levothyroxine Sodium
125 claims
- Losartan Potassium
Losartan Potassium
115 claims
- Gabapentin
Gabapentin
111 claims
- Metformin Hcl
Metformin Hcl
106 claims
- Amlodipine Besylate
Amlodipine Besylate
105 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
78 claims
- Omeprazole 71
Omeprazole
71 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 190 |
| Levothyroxine Sodium | 125 |
| Losartan Potassium | 115 |
| Gabapentin | 111 |
| Metformin Hcl | 106 |
| Amlodipine Besylate | 105 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 78 |
| Omeprazole | 71 |
| Hydrochlorothiazide | 67 |
| Ozempic Semaglutide | 67 |
* 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 Josianne Bailey, MD, MBA fits within the Internal Medicine Physician landscape nationally.
174,792
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,785
Avg Claims per Provider
Josianne Bailey, MD, MBA's 3,085 claims are above the specialty average of 2,785.
Nationwide Internal Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Bailey, both outside California so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (85.2 here).
Same NPPES enumeration year (2019)
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 Bailey.
One of 20,403 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 Josianne Bailey, MD, MBA's specialty? ▼
Josianne Bailey, MD, MBA specializes in Internal Medicine Physician and practices in Loma Linda, California. Credentials: MD, MBA.
How much does Josianne Bailey, MD, MBA prescribe under Medicare Part D? ▼
In 2024, Josianne Bailey, MD, MBA wrote 3,085 Medicare Part D claims totaling $253K in drug costs for 480 beneficiaries.
What is Josianne Bailey, MD, MBA's Medicare quality score? ▼
Josianne Bailey, MD, MBA has a CMS MIPS Final Score of 85.2/100 (Quality: 71.8, Cost: 64.5). 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 Josianne Bailey, MD, MBA located? ▼
Josianne Bailey, MD, MBA is located at 11234 ANDERSON ST # MC-1516, Loma Linda, CA, 92354. Phone: (909) 558-6491.
What is Josianne Bailey, MD, MBA's NPI number? ▼
Josianne Bailey, MD, MBA's National Provider Identifier (NPI) is 1033772546, issued on 04/19/2019.
Does Josianne Bailey, MD, MBA prescribe more brand-name or generic drugs? ▼
Josianne Bailey, MD, MBA's prescribing is 14% brand-name and 85% generic drugs by claim count, with $205K in brand drug costs.
Does Josianne Bailey, MD, MBA prescribe opioids? ▼
Yes, Josianne Bailey, MD, MBA had 29 opioid claims in 2024 with an opioid prescribing rate of 0.9%.
How many Internal Medicine Physician providers are there in the US? ▼
There are 174,792 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,785 Medicare Part D claims per year.
What drugs does Josianne Bailey, MD, MBA prescribe most often? ▼
Based on 2024 Medicare Part D data, Josianne Bailey, MD, MBA's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Josianne Bailey, MD, MBA accept Medicare? ▼
Josianne Bailey, MD, MBA appears in CMS Medicare data with 3,085 Part D claims and 480 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Josianne Bailey, MD, MBA's credentials? ▼
Josianne Bailey, MD, MBA's NPI is 1033772546 with credentials MD, MBA. 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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.