NPI registry status
Active
2026 NPPES data Pediatrics Physician NPI 1336191287 MD
Verify on CMS → Michael Greenfield, MD
Pediatrics Physician in Overland Park, Kansas.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 81,773 in Pediatrics 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
5K
Medicare Part D claims · 369 beneficiaries · Pediatrics Physician avg: 818
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$25.65
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Michael Greenfield, MD filed 5,277 Medicare Part D claims in 2024 as a Pediatrics Physician in Overland Park, Kansas, prescribing 90% generic.
- 5K
- Part D claims, 2024
- 90%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥94th
- pct by Part D claim volume (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 Greenfield, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1336191287), first enumerated 05/17/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 5,277 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- 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
$25.65 in reported industry payments (1 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 1336191287 · Pediatrics Physician
NPI-10 · ENUM-LEGACY · TAX-MEGA · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1336191287
- ENUM-LEGACY 2006
- TAX-MEGA 82K Pediatrics Physician
- RX-MID 5,277
- BOOK-THIN 453 in Kansas
- PHOTO-ENUM Andrew Ighade, MD · 2006
Michael Greenfield, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
5,277 ≥ 94th percentile 94% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. 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 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
Michael Greenfield, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Michael Greenfield, MD?
Quality data not reportedPrimary specialty
Pediatrics Physician
Medicare Part D claims
5,277 6× vs specialty avg
Specialty distribution in Kansas
How Pediatrics Physician compares to other specialties among Kansas providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Pediatrics Physician. Verify directly:
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 | 1336191287 |
|---|---|
| Specialty | Pediatrics Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 05/17/2006 |
Hospital and facility affiliations
Facilities where Michael 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.
Shawnee Mission Medical Center Inc
Merriam, KS
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 Michael Greenfield, MD. Source: openpaymentsdata.cms.gov.
Total received
$26
Largest payer
Takeda Pharmaceuticals U.S.A., Inc.
Most common payment type
Education
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
Michael Greenfield, MD - brand share 10.0%
Pediatrics Physician average
10% brand-name claims vs 90% generic, on 5,277 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.
5,277
Total Claims
$321K
Total Drug Cost
369
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 11,553.3
- Total Day Supply
- 340,878
- Brand vs Generic
- 10% brand / 90% generic
- Brand Drug Cost
- $272K
- Generic Drug Cost
- $49K
- Opioid Claims
- 61 (1.2% rate)
- Antibiotic Claims
- 59
Patient Demographics
- Average Patient Age
- 74.0 years
- Avg HCC Risk Score
- 1.03
- Gender Split
- 41% female / 59% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Michael Greenfield, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Atorvastatin Calcium
Atorvastatin Calcium
560 claims
- Levothyroxine Sodium
Levothyroxine Sodium
379 claims
- Lisinopril
Lisinopril
277 claims
- Rosuvastatin Calcium 188
Rosuvastatin Calcium
188 claims
- Amlodipine Besylate 172
Amlodipine Besylate
172 claims
- Losartan Potassium 171
Losartan Potassium
171 claims
- Meloxicam 157
Meloxicam
157 claims
- Tamsulosin Hcl 152
Tamsulosin Hcl
152 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 560 |
| Levothyroxine Sodium | 379 |
| Lisinopril | 277 |
| Rosuvastatin Calcium | 188 |
| Amlodipine Besylate | 172 |
| Losartan Potassium | 171 |
| Meloxicam | 157 |
| Tamsulosin Hcl | 152 |
| Pantoprazole Sodium | 139 |
| Metformin Hcl | 134 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Pediatrics Physician Overview
How Michael Greenfield, MD fits within the Pediatrics Physician landscape nationally.
81,773
Pediatrics Physician Providers in US
56
States with Pediatrics Physician
818
Avg Claims per Provider
Michael Greenfield, MD's 5,277 claims are above the specialty average of 818.
Nationwide Pediatrics Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Greenfield, both outside Kansas so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Pediatrics Physician Providers in Kansas
Other clinicians with the same primary specialty enrolled in Kansas, drawn from the same CMS NPPES roster as Greenfield.
One of 453 Pediatrics Physician providers enrolled in Kansas, 5 are shown here.
Noha Abdelrahman
Wichita, KS
Dr. Beth Abraham
M.D.
Kansas City, KS
Dr. Rishi Ram Adhikari
MD
Wichita, KS
Dr. Adikuor Adjetey
MD
Junction City, KS
Dr. Conrado Agustin
M.D.
Wichita, KS
Compare Pediatrics Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Michael Greenfield, MD's specialty? ▼
Michael Greenfield, MD specializes in Pediatrics Physician and practices in Overland Park, Kansas. Credentials: MD.
How much does Michael Greenfield, MD prescribe under Medicare Part D? ▼
In 2024, Michael Greenfield, MD wrote 5,277 Medicare Part D claims totaling $321K in drug costs for 369 beneficiaries.
Where is Michael Greenfield, MD located? ▼
Michael Greenfield, MD is located at 7840 W 165TH ST STE 210, Overland Park, KS, 66223. Phone: (913) 373-2230.
What is Michael Greenfield, MD's NPI number? ▼
Michael Greenfield, MD's National Provider Identifier (NPI) is 1336191287, issued on 05/17/2006.
Does Michael Greenfield, MD prescribe more brand-name or generic drugs? ▼
Michael Greenfield, MD's prescribing is 10% brand-name and 90% generic drugs by claim count, with $272K in brand drug costs.
Does Michael Greenfield, MD prescribe opioids? ▼
Yes, Michael Greenfield, MD had 61 opioid claims in 2024 with an opioid prescribing rate of 1.2%.
How many Pediatrics Physician providers are there in the US? ▼
There are 81,773 Pediatrics Physician providers across 56 states in the US. The average Pediatrics Physician provider writes 818 Medicare Part D claims per year.
What drugs does Michael Greenfield, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Michael Greenfield, MD's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Michael Greenfield, MD accept Medicare? ▼
Michael Greenfield, MD appears in CMS Medicare data with 5,277 Part D claims and 369 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Michael Greenfield, MD's credentials? ▼
Michael Greenfield, MD's NPI is 1336191287 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.
- 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.