NPI registry status
Active
2026 NPPES data Emergency Medical Services (Emergency Medicine) Physician NPI 1538250576 MD
Verify on CMS → Swati Greenfield, MD
Emergency Medical Services (Emergency Medicine) Physician in Franklin, Tennessee.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 3,618 in Emergency Medical Services (Emergency 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
268
Medicare Part D claims · 148 beneficiaries · Emergency Medical Services (Emergency Medicine) Physician avg: 394
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
86.6/100
▲ 3 pts above national avg 83.5 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Swati Greenfield, MD reported a CMS MIPS final score of 86.6/100 - above the 83.5 national average - and filed 268 Medicare Part D claims in 2023.
- 86.6/100
- MIPS score · +3 vs avg
- 268
- Part D claims, 2023
- 93%
- 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.
Swati Greenfield, 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.
87 ≥ 49th percentile 49% 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 Swati Greenfield, MD sits
This provider among emergency medical services (emergency medicine) physician peers
Across the 571 emergency medical services (emergency medicine) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Swati Greenfield, MD writes more Part D claims than 72% of them and scores higher on MIPS quality than 39% - 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 emergency medical services (emergency medicine) physician peer from a representative sample of 60; the gold marker is Swati Greenfield, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Swati Greenfield, MD 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 Swati Greenfield, MD?
High performer (top quartile)Primary specialty
Emergency Medical Services (Emergency Medicine) Physician
Medicare Part D claims
268 32% vs specialty avg
MIPS final score
86.6/100 3.1 pts vs avg
Specialty distribution in Tennessee
How Emergency Medical Services (Emergency Medicine) Physician compares to other specialties among Tennessee providers
Medicare quality performance, MIPS
Swati Greenfield, MD's 2023 MIPS final score plotted against the Emergency Medical Services (Emergency Medicine) Physician national average
- MIPS Final Score
- 86.6/100
- 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).
Swati Greenfield, MD appears in the CMS NPPES registry as an Emergency Medical Services (Emergency Medicine) Physician provider holding MD credentials at 4321 CAROTHERS PKWY, Franklin, TN, 37067, with a listed phone of (615) 435-7200. NPI 1538250576 was issued on 09/27/2006.
Medicare Part D records for calendar year 2023 show 268 prescription claims written by this provider, covering 148 Medicare beneficiaries and totaling roughly $6K in drug spend, split 7% brand-name and 93% generic by claim count, with an opioid prescribing rate of 16.4%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 86.6/100 for the 2023 performance year (Quality 81.2, Cost 89.8), compared with the 83.5 average among clinicians with a measured score.
Emergency Medical Services (Emergency Medicine) Physician is a narrow specialty nationwide, with 3,618 enrolled providers across 55 states and an average of 394 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
Provider Details
| NPI | 1538250576 |
|---|---|
| Specialty | Emergency Medical Services (Emergency Medicine) Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 09/27/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
86.609
Final Score
Measured-score avg: 83.5
81.1995
Quality
89.831
Cost
Reporting: Group practice
Hospital and facility affiliations
Facilities where Swati Greenfield, 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.
Emergi-Trust
Franklin, TN
Middle Tennessee Emergency Physicians, P.C.
McMinnville, TN
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Generic-heavy
Swati Greenfield, MD - brand share 7.0%
Emergency Medical Services (Emergency Medicine) Physician average
7% brand-name claims vs 93% generic, on 268 2023 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 2023.
268
Total Claims
$6K
Total Drug Cost
148
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 271
- Total Day Supply
- 2,202
- Brand vs Generic
- 7% brand / 93% generic
- Brand Drug Cost
- $3K
- Generic Drug Cost
- $3K
- Opioid Claims
- 44 (16.4% rate)
- Antibiotic Claims
- 69
Patient Demographics
- Average Patient Age
- 75.3 years
- Avg HCC Risk Score
- 1.35
- Gender Split
- 66% female / 34% male
- Age Distribution
- <65: 11, 65-74: 58, 75-84: 53, 85+: 26
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Swati Greenfield, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Ondansetron Odt
Ondansetron Odt
32 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
31 claims
- Cephalexin
Cephalexin
22 claims
- Prednisone
Prednisone
20 claims
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
14 claims
- Doxycycline Hyclate
Doxycycline Hyclate
14 claims
- Oxycodone-Acetamin… 12
Oxycodone-Acetaminophen
12 claims
| Drug | Claims |
|---|---|
| Ondansetron Odt Ondansetron | 32 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 31 |
| Cephalexin | 22 |
| Prednisone | 20 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 14 |
| Doxycycline Hyclate | 14 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Emergency Medical Services (Emergency Medicine) Physician in TN →
All providers in Tennessee →
Compare specialties →
Emergency Medical Services (Emergency Medicine) Physician Overview
How Swati Greenfield, MD fits within the Emergency Medical Services (Emergency Medicine) Physician landscape nationally.
3,618
Emergency Medical Services (Emergency Medicine) Physician Providers in US
55
States with Emergency Medical Services (Emergency Medicine) Physician
394
Avg Claims per Provider
Swati Greenfield, MD's 268 claims are below the specialty average of 394.
Nearby Emergency Medical Services (Emergency Medicine) Physician Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as Greenfield.
One of 55 Emergency Medical Services (Emergency Medicine) Physician providers enrolled in Tennessee, 5 are shown here.
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Tennessee medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Emergency Medical Services (Emergency Medicine) Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Swati Greenfield, MD's specialty? ▼
Swati Greenfield, MD specializes in Emergency Medical Services (Emergency Medicine) Physician and practices in Franklin, Tennessee. Credentials: MD.
How much does Swati Greenfield, MD prescribe under Medicare Part D? ▼
In 2023, Swati Greenfield, MD wrote 268 Medicare Part D claims totaling $6K in drug costs for 148 beneficiaries.
What is Swati Greenfield, MD's Medicare quality score? ▼
Swati Greenfield, MD has a CMS MIPS Final Score of 86.6/100 (Quality: 81.2, Cost: 89.8). 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 Swati Greenfield, MD located? ▼
Swati Greenfield, MD is located at 4321 CAROTHERS PKWY, Franklin, TN, 37067. Phone: (615) 435-7200.
What is Swati Greenfield, MD's NPI number? ▼
Swati Greenfield, MD's National Provider Identifier (NPI) is 1538250576, issued on 09/27/2006.
Does Swati Greenfield, MD prescribe more brand-name or generic drugs? ▼
Swati Greenfield, MD's prescribing is 7% brand-name and 93% generic drugs by claim count, with $3K in brand drug costs.
Does Swati Greenfield, MD prescribe opioids? ▼
Yes, Swati Greenfield, MD had 44 opioid claims in 2023 with an opioid prescribing rate of 16.4%.
How many Emergency Medical Services (Emergency Medicine) Physician providers are there in the US? ▼
There are 3,618 Emergency Medical Services (Emergency Medicine) Physician providers across 55 states in the US. The average Emergency Medical Services (Emergency Medicine) Physician provider writes 394 Medicare Part D claims per year.
What drugs does Swati Greenfield, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Swati Greenfield, MD's most frequently prescribed drugs include Ondansetron Odt, Hydrocodone-Acetaminophen, Cephalexin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Swati Greenfield, MD accept Medicare? ▼
Swati Greenfield, MD appears in CMS Medicare data with 268 Part D claims and 148 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Swati Greenfield, MD's credentials? ▼
Swati Greenfield, MD's NPI is 1538250576 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.