NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1194700146 MD
Verify on CMS → Michael Posey, MD
Internal Medicine Physician in Germantown, 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 172,737 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
5K
Medicare Part D claims · 241 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
80%
generic claims · 19% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.4K
55 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Michael Posey, MD filed 5,337 Medicare Part D claims in 2023 as an Internal Medicine Physician in Germantown, Tennessee, prescribing 80% generic.
- 5K
- Part D claims, 2023
- 80%
- 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.
Michael Posey, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
5,337 ≥ 94th percentile 94% of 1,370,886 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 · 2023
✓
Board certification likely (heuristic, not verified)
Michael Posey, 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 Posey, MD?
Quality data not reportedPrimary specialty
Internal Medicine Physician
Medicare Part D claims
5,337 97% vs specialty avg
Specialty distribution in Tennessee
How Internal Medicine Physician compares to other specialties among Tennessee 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 Internal Medicine 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).
Michael Posey, MD appears in the CMS NPPES registry as an Internal Medicine Physician provider holding MD credentials at 1900 EXETER STE 100, Germantown, TN, 38138, with a listed phone of (901) 435-2200. NPI 1194700146 was issued on 12/13/2005.
Medicare Part D records for calendar year 2023 show 5,337 prescription claims written by this provider, covering 241 Medicare beneficiaries and totaling roughly $873K in drug spend, split 19% brand-name and 80% generic by claim count, with an opioid prescribing rate of 4.1%.
Internal Medicine Physician is a high-volume specialty nationwide, with 172,737 enrolled providers across 56 states and an average of 2,716 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 | 1194700146 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 12/13/2005 |
Hospital and facility affiliations
Facilities where Michael Posey, 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.
Germantown Wellness And Preventive Medicine, PLLC
Germantown, 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).
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 Posey, MD. Source: openpaymentsdata.cms.gov.
Total received
$1.4K
Largest payer
AstraZeneca Pharmaceuticals LP
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
Michael Posey, MD - brand share 19.0%
Internal Medicine Physician average
19% brand-name claims vs 80% generic, on 5,337 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.
5,337
Total Claims
$873K
Total Drug Cost
241
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 10,811
- Total Day Supply
- 312,996
- Brand vs Generic
- 19% brand / 80% generic
- Brand Drug Cost
- $712K
- Generic Drug Cost
- $160K
- Opioid Claims
- 219 (4.1% rate)
- Antibiotic Claims
- 231
Patient Demographics
- Average Patient Age
- 75.3 years
- Avg HCC Risk Score
- 1.26
- Gender Split
- 56% female / 44% male
- Age Distribution
- <65: 15, 65-74: 98, 75-84: 97, 85+: 31
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Michael Posey, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Rosuvastatin Calcium
Rosuvastatin Calcium
241 claims
- Amlodipine Besylate
Amlodipine Besylate
232 claims
- Montelukast Sodium
Montelukast Sodium
140 claims
- Eliquis
Eliquis
137 claims
- Fenofibric Acid
Fenofibric Acid
125 claims
- Levoxyl
Levoxyl
122 claims
- Gabapentin
Gabapentin
104 claims
- Alprazolam
Alprazolam
103 claims
| Drug | Claims |
|---|---|
| Rosuvastatin Calcium | 241 |
| Amlodipine Besylate | 232 |
| Montelukast Sodium | 140 |
| Eliquis Apixaban | 137 |
| Fenofibric Acid Fenofibric Acid (Choline) | 125 |
| Levoxyl Levothyroxine Sodium | 122 |
| Gabapentin | 104 |
| Alprazolam | 103 |
| Metformin Hcl Er Metformin Hcl | 96 |
| Ezetimibe | 95 |
* 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 Michael Posey, MD fits within the Internal Medicine Physician landscape nationally.
172,737
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
Michael Posey, MD's 5,337 claims are above the specialty average of 2,716.
Nearby Internal Medicine Physician Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as Posey.
Dr. Damon Abaray
MD
Nashville, TN
Dr. Samuel Abbas
MD
Hixson, TN
Dr. Matthew Abbate
MD
Nashville, TN
Dr. Kazeen Abdullah
M.D.
Smyrna, TN
Dr. Sarmed Abdullah
M.D.
Lexington, TN
Compare Internal Medicine Physician nationally: see state-by-state distribution →
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 Internal 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.
Healthcare Guides
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Medical Specialties Explained
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Understanding Medicare Claims Data
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How insurance networks affect your costs
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Frequently Asked Questions
What is Michael Posey, MD's specialty? ▼
Michael Posey, MD specializes in Internal Medicine Physician and practices in Germantown, Tennessee. Credentials: MD.
How much does Michael Posey, MD prescribe under Medicare Part D? ▼
In 2023, Michael Posey, MD wrote 5,337 Medicare Part D claims totaling $873K in drug costs for 241 beneficiaries.
Where is Michael Posey, MD located? ▼
Michael Posey, MD is located at 1900 EXETER STE 100, Germantown, TN, 38138. Phone: (901) 435-2200.
What is Michael Posey, MD's NPI number? ▼
Michael Posey, MD's National Provider Identifier (NPI) is 1194700146, issued on 12/13/2005.
Does Michael Posey, MD prescribe more brand-name or generic drugs? ▼
Michael Posey, MD's prescribing is 19% brand-name and 80% generic drugs by claim count, with $712K in brand drug costs.
Does Michael Posey, MD prescribe opioids? ▼
Yes, Michael Posey, MD had 219 opioid claims in 2023 with an opioid prescribing rate of 4.1%.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,737 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Michael Posey, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Michael Posey, MD's most frequently prescribed drugs include Rosuvastatin Calcium, Amlodipine Besylate, Montelukast Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Michael Posey, MD accept Medicare? ▼
Michael Posey, MD appears in CMS Medicare data with 5,337 Part D claims and 241 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Michael Posey, MD's credentials? ▼
Michael Posey, MD's NPI is 1194700146 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.
- 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.