NPI registry status
Active
2026 NPPES data Interventional Pain Medicine Physician NPI 1992138366 MD
Verify on CMS → William Smisson, MD
Interventional Pain Medicine Physician in Macon, 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 1,528 in Interventional Pain 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
595
Medicare Part D claims · 79 beneficiaries · Interventional Pain Medicine Physician avg: 2K
Industry payments
$489.78
7 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
William Smisson, MD filed 595 Medicare Part D claims in 2023 as a Interventional Pain Medicine Physician in Macon, Georgia.
- 595
- Part D claims, 2023
- 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.
William Smisson, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
595 Top 34% higher than 66% of 1,370,886 prescribers
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.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
William Smisson, 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 William Smisson, MD?
Quality data not reportedPrimary specialty
Interventional Pain Medicine Physician
Medicare Part D claims
595 73% vs specialty avg
Specialty distribution in Georgia
How Interventional Pain Medicine Physician compares to other specialties among Georgia 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 Interventional Pain 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).
William Smisson, MD appears in the CMS NPPES registry as a Interventional Pain Medicine Physician provider holding MD credentials at 1157 FORSYTH ST STE 200, Macon, GA, 31201, with a listed phone of (478) 476-1968. NPI 1992138366 was issued on 08/20/2013.
Medicare Part D records for calendar year 2023 show 595 prescription claims written by this provider, covering 79 Medicare beneficiaries and totaling roughly $32K in drug spend, with an opioid prescribing rate of 2.2%.
Interventional Pain Medicine Physician is a narrow specialty nationwide, with 1,528 enrolled providers across 53 states and an average of 2,197 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 | 1992138366 |
|---|---|
| Specialty | Interventional Pain Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 08/20/2013 |
Hospital and facility affiliations
Facilities where William Smisson, 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.
American Anesthesiology Associates OF Georgia LLC
Macon, GA
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 William Smisson, MD. Source: openpaymentsdata.cms.gov.
Total received
$490
Largest payer
Boston Scientific Corporation
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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
595
Total Claims
$32K
Total Drug Cost
79
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 657
- Total Day Supply
- 14,182
- Generic Drug Cost
- $7K
- Opioid Claims
- 13 (2.2% rate)
- Antibiotic Claims
- 34
Patient Demographics
- Average Patient Age
- 75.3 years
- Avg HCC Risk Score
- 2.83
- Gender Split
- 66% female / 34% male
- Age Distribution
- <65: 12, 65-74: 22, 75-84: 31, 85+: 14
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What William Smisson, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Quetiapine Fumarate
Quetiapine Fumarate
23 claims
- Levothyroxine Sodium
Levothyroxine Sodium
21 claims
- Metoprolol Tartrate
Metoprolol Tartrate
20 claims
- Gabapentin
Gabapentin
19 claims
- Pantoprazole Sodium
Pantoprazole Sodium
18 claims
- Potassium Chloride
Potassium Chloride
17 claims
- Prednisone
Prednisone
17 claims
- Metoprolol Succinate
Metoprolol Succinate
15 claims
| Drug | Claims |
|---|---|
| Quetiapine Fumarate | 23 |
| Levothyroxine Sodium | 21 |
| Metoprolol Tartrate | 20 |
| Gabapentin | 19 |
| Pantoprazole Sodium | 18 |
| Potassium Chloride | 17 |
| Prednisone | 17 |
| Metoprolol Succinate | 15 |
| Donepezil Hcl | 13 |
| Oxybutynin Chloride Er Oxybutynin Chloride | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Interventional Pain Medicine Physician in GA →
All providers in Georgia →
Compare specialties →
Interventional Pain Medicine Physician Overview
How William Smisson, MD fits within the Interventional Pain Medicine Physician landscape nationally.
1,528
Interventional Pain Medicine Physician Providers in US
53
States with Interventional Pain Medicine Physician
2,197
Avg Claims per Provider
William Smisson, MD's 595 claims are below the specialty average of 2,197.
Nearby Interventional Pain Medicine Physician Providers in Georgia
Other clinicians with the same primary specialty enrolled in Georgia, drawn from the same CMS NPPES roster as Smisson.
Dr. Chad Achilles
M.D.
Atlanta, GA
Dr. Naureen Adam
M.D.
Atlanta, GA
Dr. Brian Adams
MD
Gainesville, GA
Dr. Jolaade Adebayo
M.D.
Gainesville, GA
Dr. Randall Berinhout
M.D.
Stockbridge, GA
Compare Interventional Pain 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 Interventional Pain 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 William Smisson, MD's specialty? ▼
William Smisson, MD specializes in Interventional Pain Medicine Physician and practices in Macon, Georgia. Credentials: MD.
How much does William Smisson, MD prescribe under Medicare Part D? ▼
In 2023, William Smisson, MD wrote 595 Medicare Part D claims totaling $32K in drug costs for 79 beneficiaries.
Where is William Smisson, MD located? ▼
William Smisson, MD is located at 1157 FORSYTH ST STE 200, Macon, GA, 31201. Phone: (478) 476-1968.
What is William Smisson, MD's NPI number? ▼
William Smisson, MD's National Provider Identifier (NPI) is 1992138366, issued on 08/20/2013.
Does William Smisson, MD prescribe opioids? ▼
Yes, William Smisson, MD had 13 opioid claims in 2023 with an opioid prescribing rate of 2.2%.
How many Interventional Pain Medicine Physician providers are there in the US? ▼
There are 1,528 Interventional Pain Medicine Physician providers across 53 states in the US. The average Interventional Pain Medicine Physician provider writes 2,197 Medicare Part D claims per year.
What drugs does William Smisson, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, William Smisson, MD's most frequently prescribed drugs include Quetiapine Fumarate, Levothyroxine Sodium, Metoprolol Tartrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does William Smisson, MD accept Medicare? ▼
William Smisson, MD appears in CMS Medicare data with 595 Part D claims and 79 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify William Smisson, MD's credentials? ▼
William Smisson, MD's NPI is 1992138366 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
Compiled from official public sources by the PlainDoctor editorial team.