NPI registry status
Active
2026 NPPES data Gynecology Physician NPI 1841394285 M.D.
Verify on CMS → John Bloss, M.D.
Gynecology Physician in Thibodaux, Louisiana.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 3,912 in Gynecology 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
745
Medicare Part D claims · 170 beneficiaries · Gynecology Physician avg: 319
Generic prescribing
77%
generic claims · 23% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
83.3/100
▼ 0 pts below national avg 83.5 · Above neutral
Industry payments
$189.31
12 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
John Bloss, M.D. reported a CMS MIPS final score of 83.3/100 - below the 83.5 national average - and filed 745 Medicare Part D claims in 2024.
- 83.3/100
- MIPS score · 0 vs avg
- 745
- Part D claims, 2024
- 77%
- 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 John Bloss, M.D.
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 1841394285), first enumerated 09/07/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 745 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 83.3/100 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
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$189.31 in reported industry payments (12 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- 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 1841394285 · Gynecology Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · MIPS-INLINE · RX-LIGHT · BOOK-THIN · PHOTO-FINISH
- NPI-10 1841394285
- ENUM-LEGACY 2006
- TAX-NARROW 3,912
- MIPS-INLINE 83.3/100
- RX-LIGHT 745
- BOOK-THIN 39 in Louisiana
- PHOTO-FINISH Caroline Gorn, M.D. · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Bloss · this pro…
Bloss · this provider
83.3 MIPS pts
- Jeri Shuster, M.…
Jeri Shuster, M.D.
83.3 MIPS pts
- Caroline Gorn, M…
Caroline Gorn, M.D.
83.3 MIPS pts
- Abraham Khan, MD…
Abraham Khan, MD
83.3 MIPS pts
- Meghan Lynch, MD…
Meghan Lynch, MD
83.3 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
John Bloss, M.D.'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.
83 ≥ 39th percentile 39% 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 John Bloss, M.D. sits
This provider among gynecology physician peers
Across the 538 gynecology physician providers who report both Medicare Part D prescribing and a MIPS quality score, John Bloss, M.D. writes more Part D claims than 85% of them and scores higher on MIPS quality than 37% - 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 gynecology physician peer from a representative sample of 60; the gold marker is John Bloss, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
John Bloss, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - 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 John Bloss, M.D.?
Near national averagePrimary specialty
Gynecology Physician
Medicare Part D claims
745 134% vs specialty avg
MIPS final score
83.3/100 0.2 pts vs avg
Specialty distribution in Louisiana
How Gynecology Physician compares to other specialties among Louisiana providers
Medicare quality performance, MIPS
John Bloss, M.D.'s 2023 MIPS final score plotted against the Gynecology Physician national average
- MIPS Final Score
- 83.3/100
- 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 | 1841394285 |
|---|---|
| Specialty | Gynecology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 09/07/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
83.3223
Final Score
Measured-score avg: 83.5
82.7782
Quality
59.0587
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where John Bloss, M.D. 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.
Thibodaux Regional Network Development Corporation
Thibodaux, LA
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 John Bloss, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$189
Largest payer
PFIZER 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.
Brand vs generic prescribing mix · Typical
John Bloss, M.D. - brand share 23.0%
Gynecology Physician average
23% brand-name claims vs 77% generic, on 745 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.
745
Total Claims
$125K
Total Drug Cost
170
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,407.933
- Total Day Supply
- 40,308
- Brand vs Generic
- 23% brand / 77% generic
- Brand Drug Cost
- $104K
- Generic Drug Cost
- $21K
- Antibiotic Claims
- 12
Patient Demographics
- Average Patient Age
- 70.0 years
- Avg HCC Risk Score
- 0.74
- Gender Split
- 100% female / 0% male
- Age Distribution
- <65: 16, 65-74: 114, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What John Bloss, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Estradiol
Estradiol
107 claims
- Progesterone
Progesterone
105 claims
- Raloxifene Hcl
Raloxifene Hcl
61 claims
- Estradiol (Twice W…
Estradiol (Twice Weekly)
49 claims
- Mounjaro
Mounjaro
49 claims
- Alendronate Sodium
Alendronate Sodium
45 claims
- Escitalopram Oxalate 28
Escitalopram Oxalate
28 claims
- Levothyroxine Sodium 28
Levothyroxine Sodium
28 claims
| Drug | Claims |
|---|---|
| Estradiol | 107 |
| Progesterone Progesterone, Micronized | 105 |
| Raloxifene Hcl | 61 |
| Estradiol (Twice Weekly) Estradiol | 49 |
| Mounjaro Tirzepatide | 49 |
| Alendronate Sodium | 45 |
| Escitalopram Oxalate | 28 |
| Levothyroxine Sodium | 28 |
| Ketoconazole | 27 |
| Dotti Estradiol | 23 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Gynecology Physician Overview
How John Bloss, M.D. fits within the Gynecology Physician landscape nationally.
3,912
Gynecology Physician Providers in US
53
States with Gynecology Physician
319
Avg Claims per Provider
John Bloss, M.D.'s 745 claims are above the specialty average of 319.
Nationwide Gynecology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Bloss, both outside Louisiana so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (83.3 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Gynecology Physician Providers in Louisiana
Other clinicians with the same primary specialty enrolled in Louisiana, drawn from the same CMS NPPES roster as Bloss.
One of 39 Gynecology Physician providers enrolled in Louisiana, 5 are shown here.
Dr. Ronald Anders
M.D.
Ruston, LA
Dr. Amy Ashton
MD
Thibodaux, LA
Dr. Phillip Barksdale
M.D.
Baton Rouge, LA
Dr. Charles Berry
M.D.
Hammond, LA
Dr. Emily Bienvenu
MD
Baton Rouge, LA
Compare Gynecology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is John Bloss, M.D.'s specialty? ▼
John Bloss, M.D. specializes in Gynecology Physician and practices in Thibodaux, Louisiana. Credentials: M.D..
How much does John Bloss, M.D. prescribe under Medicare Part D? ▼
In 2024, John Bloss, M.D. wrote 745 Medicare Part D claims totaling $125K in drug costs for 170 beneficiaries.
What is John Bloss, M.D.'s Medicare quality score? ▼
John Bloss, M.D. has a CMS MIPS Final Score of 83.3/100 (Quality: 82.8, Cost: 59.1). 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 John Bloss, M.D. located? ▼
John Bloss, M.D. is located at 604 N ACADIA RD STE 500, Thibodaux, LA, 70301. Phone: (985) 448-1216.
What is John Bloss, M.D.'s NPI number? ▼
John Bloss, M.D.'s National Provider Identifier (NPI) is 1841394285, issued on 09/07/2006.
Does John Bloss, M.D. prescribe more brand-name or generic drugs? ▼
John Bloss, M.D.'s prescribing is 23% brand-name and 77% generic drugs by claim count, with $104K in brand drug costs.
How many Gynecology Physician providers are there in the US? ▼
There are 3,912 Gynecology Physician providers across 53 states in the US. The average Gynecology Physician provider writes 319 Medicare Part D claims per year.
What drugs does John Bloss, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, John Bloss, M.D.'s most frequently prescribed drugs include Estradiol, Progesterone, Raloxifene Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Bloss, M.D. accept Medicare? ▼
John Bloss, M.D. appears in CMS Medicare data with 745 Part D claims and 170 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Bloss, M.D.'s credentials? ▼
John Bloss, M.D.'s NPI is 1841394285 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 (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.