NPI registry status
Active
2026 NPPES data Emergency Medicine Physician NPI 1578540340 MD
Verify on CMS → David Hatmaker, MD
Emergency Medicine Physician in Covington, Georgia.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 64,463 in 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
611
Medicare Part D claims · 398 beneficiaries · Emergency Medicine Physician avg: 352
Generic prescribing
65%
generic claims · 33% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
76.8/100
▼ 6 pts below national avg 83.1 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
David Hatmaker, MD reported a CMS MIPS final score of 76.8/100 - below the 83.1 national average - and filed 611 Medicare Part D claims in 2023.
- 76.8/100
- MIPS score · -6 vs avg
- 611
- Part D claims, 2023
- 65%
- 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.
David Hatmaker, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
77 21st percentile higher than 21% of 477,587 scored providers
Each bar is a band; taller bars hold more scored 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.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where David Hatmaker, MD sits
This provider among emergency medicine physician peers
Across the 14,967 emergency medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, David Hatmaker, MD writes more Part D claims than 94% of them and scores higher on MIPS quality than 20% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one emergency medicine physician peer from a representative sample of 60; the gold marker is David Hatmaker, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
David Hatmaker, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 3 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 David Hatmaker, MD?
Below national averagePrimary specialty
Emergency Medicine Physician
Medicare Part D claims
611 74% vs specialty avg
MIPS final score
76.8/100 6.3 pts vs avg
Specialty distribution in Georgia
How Emergency Medicine Physician compares to other specialties among Georgia providers
Medicare quality performance, MIPS
David Hatmaker, MD's 2023 MIPS final score plotted against the Emergency Medicine Physician national average
- MIPS Final Score
- 76.8/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Emergency Medicine Physician) - 76.8/100 vs national avg 83.1
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).
David Hatmaker, MD appears in the CMS NPPES registry as an Emergency Medicine Physician provider holding MD credentials at 5126 HOSPITAL DR NE, Covington, GA, 30014, with a listed phone of (800) 532-6151. NPI 1578540340 was issued on 12/22/2005.
Medicare Part D records for calendar year 2023 show 611 prescription claims written by this provider, covering 398 Medicare beneficiaries and totaling roughly $49K in drug spend, split 33% brand-name and 65% generic by claim count, with an opioid prescribing rate of 8.0%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 76.8/100 for the 2023 performance year (Quality 71.1, Cost 52.6), compared with the national average of 83.1.
Emergency Medicine Physician is a high-volume specialty nationwide, with 64,463 enrolled providers across 56 states and an average of 352 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 | 1578540340 |
|---|---|
| Specialty | Emergency Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 12/22/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
76.8466
Final Score
Avg: 83.1
71.0843
Quality
52.571
Cost
99
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where David Hatmaker, 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.
According to CMS billing records, David Hatmaker, MD is affiliated with 3 Medicare-billing facilities, 1 of which carry a CMS Hospital overall star rating.
Beaufort County Memorial Hospital
★★★★☆ 4/5
Beaufort, SC
Acute Care Hospitals
CMS CCN: 420067
Acs Primary Care Physicians - Southeast PC
Myrtle Beach, SC
Ich ER Services LLC
Anderson, SC
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 · Above average
David Hatmaker, MD - brand share 33.0%
Emergency Medicine Physician average
33% brand-name claims vs 65% generic, on 611 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.
611
Total Claims
$49K
Total Drug Cost
398
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 624
- Total Day Supply
- 5,016
- Brand vs Generic
- 33% brand / 65% generic
- Brand Drug Cost
- $45K
- Generic Drug Cost
- $3K
- Opioid Claims
- 49 (8.0% rate)
- Antibiotic Claims
- 122
Patient Demographics
- Average Patient Age
- 70.4 years
- Avg HCC Risk Score
- 1.47
- Gender Split
- 58% female / 42% male
- Age Distribution
- <65: 86, 65-74: 174, 75-84: 96, 85+: 42
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What David Hatmaker, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Shingrix
Shingrix
124 claims
- Prednisone 41
Prednisone
41 claims
- Arexvy 26
Arexvy
26 claims
- Hydrocodone-Acetam… 23
Hydrocodone-Acetaminophen
23 claims
- Azithromycin 22
Azithromycin
22 claims
- Ondansetron Odt 21
Ondansetron Odt
21 claims
- Tramadol Hcl 21
Tramadol Hcl
21 claims
- Cephalexin 20
Cephalexin
20 claims
| Drug | Claims |
|---|---|
| Shingrix Varicella-Zoster Ge/As01b/Pf | 124 |
| Prednisone | 41 |
| Arexvy Rsvpref3 Antigen/As01e/Pf | 26 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 23 |
| Azithromycin | 22 |
| Ondansetron Odt Ondansetron | 21 |
| Tramadol Hcl | 21 |
| Cephalexin | 20 |
| Cefadroxil | 18 |
| Doxycycline Hyclate | 17 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Emergency Medicine Physician Overview
How David Hatmaker, MD fits within the Emergency Medicine Physician landscape nationally.
64,463
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider
David Hatmaker, MD's 611 claims are above the specialty average of 352.
Nearby Emergency Medicine Physician Providers in Georgia
Other clinicians with the same primary specialty enrolled in Georgia, drawn from the same CMS NPPES roster as Hatmaker.
Dr. Lindsea Abbott
M.D.
Johns Creek, GA
Dr. Zahraa Abdul Sater
MBBS
Augusta, GA
Dr. Don Abernethy
MD
Commerce, GA
Dr. Hesham Abukhdeir
MD
Decatur, GA
Dr. Jeremy Ackerman
M.D. P.H.D.
Atlanta, GA
Compare Emergency 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 Georgia medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby 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 David Hatmaker, MD's specialty? ▼
David Hatmaker, MD specializes in Emergency Medicine Physician and practices in Covington, Georgia. Credentials: MD.
How much does David Hatmaker, MD prescribe under Medicare Part D? ▼
In 2023, David Hatmaker, MD wrote 611 Medicare Part D claims totaling $49K in drug costs for 398 beneficiaries.
What is David Hatmaker, MD's Medicare quality score? ▼
David Hatmaker, MD has a CMS MIPS Final Score of 76.8/100 (Quality: 71.1, Cost: 52.6). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is David Hatmaker, MD located? ▼
David Hatmaker, MD is located at 5126 HOSPITAL DR NE, Covington, GA, 30014. Phone: (800) 532-6151.
What is David Hatmaker, MD's NPI number? ▼
David Hatmaker, MD's National Provider Identifier (NPI) is 1578540340, issued on 12/22/2005.
Does David Hatmaker, MD prescribe more brand-name or generic drugs? ▼
David Hatmaker, MD's prescribing is 33% brand-name and 65% generic drugs by claim count, with $45K in brand drug costs.
Does David Hatmaker, MD prescribe opioids? ▼
Yes, David Hatmaker, MD had 49 opioid claims in 2023 with an opioid prescribing rate of 8.0%.
How many Emergency Medicine Physician providers are there in the US? ▼
There are 64,463 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does David Hatmaker, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, David Hatmaker, MD's most frequently prescribed drugs include Shingrix, Prednisone, Arexvy. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does David Hatmaker, MD accept Medicare? ▼
David Hatmaker, MD appears in CMS Medicare data with 611 Part D claims and 398 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify David Hatmaker, MD's credentials? ▼
David Hatmaker, MD's NPI is 1578540340 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
Compiled from official public sources by the PlainDoctor editorial team.
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.