NPI registry status
Active
2026 NPPES data Student in an Organized Health Care Education/Training Program NPI 1568027373 MD
Verify on CMS → William Santiago, MD
Student in an Organized Health Care Education/Training Program in Meriden, Connecticut.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 351,014 in Student in an Organized Health Care Education/Training Program, 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
370
Medicare Part D claims · 196 beneficiaries · Student in an Organized Health Care Education/Training Program avg: 488
MIPS score
92.6/100
▲ 9 pts above national avg 83.5 · Exceptional
What the federal data shows
William Santiago, MD reported a CMS MIPS final score of 92.6/100 - above the 83.5 national average - and filed 370 Medicare Part D claims in 2024.
- 92.6/100
- MIPS score · +9 vs avg
- 370
- Part D claims, 2024
- ≥66th
- 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 William Santiago, 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 1568027373), first enumerated 05/07/2019.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 370 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 92.6/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Hospital affiliations
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- 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 1568027373 · Student in an Organized Health Care Education/Training Program
NPI-10 · ENUM-RECENT · TAX-MEGA · MIPS-ABOVE · RX-LIGHT · BOOK-MID · PHOTO-FINISH
- NPI-10 1568027373
- ENUM-RECENT 2019
- TAX-MEGA 351K Student in
- MIPS-ABOVE 92.6/100
- RX-LIGHT 370
- BOOK-MID 6,669 in Connecticut
- PHOTO-FINISH Carol Halasan · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Santiago · this …
Santiago · this provider
92.6 MIPS pts
- Alejandro Lopez …
Alejandro Lopez Cohen
92.6 MIPS pts
- Carol Halasan · …
Carol Halasan
92.6 MIPS pts
- Katherine Stettm…
Katherine Stettmeier
92.6 MIPS pts
- Lirka Gonzalez R…
Lirka Gonzalez Rodriguez
92.6 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
William Santiago, 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.
93 ≥ 66th percentile 66% 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 William Santiago, MD sits
This provider among student in an organized health care education/training program peers
Across the 12,177 student in an organized health care education/training program providers who report both Medicare Part D prescribing and a MIPS quality score, William Santiago, MD writes more Part D claims than 61% of them and scores higher on MIPS quality than 67% - 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 student in an organized health care education/training program peer from a representative sample of 60; the gold marker is William Santiago, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about William Santiago, MD?
High performer (top quartile)Primary specialty
Student in an Organized Health Care Education/Training Program
Medicare Part D claims
370 24% vs specialty avg
MIPS final score
92.6/100 9.1 pts vs avg
Specialty distribution in Connecticut
How Student in an Organized Health Care Education/Training Program compares to other specialties among Connecticut providers
Medicare quality performance, MIPS
William Santiago, MD's 2023 MIPS final score plotted against the Student in an Organized Health Care Education/Training Program national average
- MIPS Final Score
- 92.6/100
- 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 | 1568027373 |
|---|---|
| Specialty | Student in an Organized Health Care Education/Training Program |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 05/07/2019 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
92.6187
Final Score
Measured-score avg: 83.5
84.1793
Quality
65.2254
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where William Santiago, 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.
Midstate Medical Center
★★★★☆ 4/5
Meriden, CT
Acute Care Hospitals
CMS CCN: 070017
The Hospital OF Central Connecticut AT New Britain General And Bradley
New Britain, CT
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
370
Total Claims
$39K
Total Drug Cost
196
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 449.3
- Total Day Supply
- 9,669
- Generic Drug Cost
- $4K
- Opioid Claims
- 17 (4.6% rate)
- Antibiotic Claims
- 89
Patient Demographics
- Average Patient Age
- 75.0 years
- Avg HCC Risk Score
- 2.54
- Gender Split
- 54% female / 46% male
- Age Distribution
- <65: 28, 65-74: 65, 75-84: 58, 85+: 45
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What William Santiago, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Prednisone
Prednisone
33 claims
- Eliquis
Eliquis
23 claims
- Cefpodoxime Proxetil
Cefpodoxime Proxetil
22 claims
- Amlodipine Besylate 13
Amlodipine Besylate
13 claims
- Clopidogrel 13
Clopidogrel
13 claims
- Doxycycline Hyclate 13
Doxycycline Hyclate
13 claims
- Amoxicillin-Clavul… 12
Amoxicillin-Clavulanate Potass
12 claims
- Oxycodone Hcl 12
Oxycodone Hcl
12 claims
| Drug | Claims |
|---|---|
| Prednisone | 33 |
| Eliquis Apixaban | 23 |
| Cefpodoxime Proxetil | 22 |
| Amlodipine Besylate | 13 |
| Clopidogrel Clopidogrel Bisulfate | 13 |
| Doxycycline Hyclate | 13 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 12 |
| Oxycodone Hcl | 12 |
| Atorvastatin Calcium | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Student in an Organized Health Care Education/Training Program in CT →
All providers in Connecticut →
Compare specialties →
Student in an Organized Health Care Education/Training Program Overview
How William Santiago, MD fits within the Student in an Organized Health Care Education/Training Program landscape nationally.
351,014
Student in an Organized Health Care Education/Training Program Providers in US
55
States with Student in an Organized Health Care Education/Training Program
488
Avg Claims per Provider
William Santiago, MD's 370 claims are below the specialty average of 488.
Nationwide Student in an Organized Health Care Education/Training Program peers with similar MIPS or enrollment year
Two federal-record peer sets for Santiago, both outside Connecticut so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (92.6 here).
Same NPPES enumeration year (2019)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Student in an Organized Health Care Education/Training Program Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Santiago.
One of 6,669 Student in an Organized Health Care Education/Training Program providers enrolled in Connecticut, 5 are shown here.
Frequently Asked Questions
What is William Santiago, MD's specialty? ▼
William Santiago, MD specializes in Student in an Organized Health Care Education/Training Program and practices in Meriden, Connecticut. Credentials: MD.
How much does William Santiago, MD prescribe under Medicare Part D? ▼
In 2024, William Santiago, MD wrote 370 Medicare Part D claims totaling $39K in drug costs for 196 beneficiaries.
What is William Santiago, MD's Medicare quality score? ▼
William Santiago, MD has a CMS MIPS Final Score of 92.6/100 (Quality: 84.2, Cost: 65.2). 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 William Santiago, MD located? ▼
William Santiago, MD is located at 435 LEWIS AVE, Meriden, CT, 06451. Phone: (203) 694-8200.
What is William Santiago, MD's NPI number? ▼
William Santiago, MD's National Provider Identifier (NPI) is 1568027373, issued on 05/07/2019.
Does William Santiago, MD prescribe opioids? ▼
Yes, William Santiago, MD had 17 opioid claims in 2024 with an opioid prescribing rate of 4.6%.
How many Student in an Organized Health Care Education/Training Program providers are there in the US? ▼
There are 351,014 Student in an Organized Health Care Education/Training Program providers across 55 states in the US. The average Student in an Organized Health Care Education/Training Program provider writes 488 Medicare Part D claims per year.
What drugs does William Santiago, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, William Santiago, MD's most frequently prescribed drugs include Prednisone, Eliquis, Cefpodoxime Proxetil. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does William Santiago, MD accept Medicare? ▼
William Santiago, MD appears in CMS Medicare data with 370 Part D claims and 196 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify William Santiago, MD's credentials? ▼
William Santiago, MD's NPI is 1568027373 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 (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.