History, 20th CenturyHistory, 21st CenturyNeurosurgery
Dr. Ken Maynard III, MD
NPI1861812372PAC ID0648559815
- Medicare services, 2024
- 344
- Medicare patients, 2024
- 208
- Part D claims, 2024
- 138
- Publications
- 8
- Hospital affiliations
- 5
- Practice address
- 330 Borthwick Ave, Portsmouth, NH 03801
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Appledore Medical Group - HOPD
Acute Care Hospital outpatient department · Portsmouth, New Hampshire
Find Dr. Maynard's professional email, personal email and mobile number
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Dr. Ken Maynard III is a neurosurgeon in Portsmouth, New Hampshire
Dr. Maynard practices at Appledore Medical Group - HOPD in Portsmouth, New Hampshire.
Dr. Maynard's NPI, 1861812372, was assigned on April 23, 2014. Dr. Maynard holds New Hampshire license 24589.
NPI and contact details
- NPI
- 1861812372NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648559815
- NPI enumeration date
- April 23, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ken Maynard III practices at Appledore Medical Group - HOPD in Portsmouth, New Hampshire
Dr. Maynard's primary practice is Appledore Medical Group - HOPD, at 330 Borthwick Ave, Portsmouth, NH 03801.
- Appledore Medical Group - HOPD330 Borthwick Ave, Portsmouth, NH 03801
Source: Dmand AI Affiliation Data
Dr. Ken Maynard III is affiliated with 8 sites of care and 2 medical groups
Dr. Maynard's primary practice is Appledore Medical Group - HOPD in Portsmouth, New Hampshire. Dr. Maynard is also affiliated with Portsmouth Regional Hospital. The medical group on file is Portsmouth Internal Medicine. Dmand AI also links Dr. Maynard to 4 more hospitals, 2 group practices and clinics and 1 medical group, each named with a free account. Dr. Maynard's employer is on file too: a hospital.
Appledore Medical Group - HOPDPrimary
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Ken Maynard III's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Maynard practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Appledore Medical Group - HOPD | Available with a free account |
| +7 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ken Maynard III is one of 23 neurosurgeons in New Hampshire
Neurological surgery is Dr. Maynard's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dmand AI has Dr. Maynard's licenses on file in 3 states: New Hampshire, Rhode Island and Texas.
Specialties and state licenses
- Neurological surgery, New HampshirePrimary
- Rhode Island license
- Texas license
Neurosurgeons near Dr. Maynard
Counts of neurosurgeons with a Dmand AI profile, by place and practice. Each opens the list.
23neurosurgeons in New Hampshire
3neurosurgeons in Portsmouth
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Ken Maynard III billed Medicare for 344 services in 2024
CMS data shows 344 Medicare services from Dr. Maynard across 8 procedure codes in 2024, for 208 Medicare patients. Medicare paid $25,204 for them.
Medicare services, 2024344
Medicare patients208
Paid by Medicare$25,204
Procedure codes8
Dr. Maynard's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 852024: 344305%
Where Dr. Maynard's Medicare services took place, 2024
- In an office27078%
- In a facility7422%
Dr. Maynard compared with the New Hampshire median for neurosurgeons, 2024
- Dr. Maynard
- New Hampshire median
- Medicare services
- 344vs 26032% above
- Medicare patients
- 208vs 18214% above
- Part D claims
- 122vs 264.7 times
Medians across 22 neurosurgeons in New Hampshire with Dmand AI profiles that report each measure.
Dr. Maynard's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Maynard and other neurosurgeons in New Hampshire.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ken Maynard III treated 208 Medicare patients in 2024, average age 74
CMS counts 208 Medicare patients who saw Dr. Maynard in 2024. The largest group is 65 to 74, with 90 patients. 75% of them have arthritis, and 75% have high blood pressure. 15% are also on Medicaid. Their average risk score is 1.21, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Maynard's median patient age at 69, with 49% women.
Medicare patients, 2024208
Average age74
Average risk score1.21
Also on Medicaid15%
Dr. Maynard's Medicare patients by age, 2024
Dr. Maynard's Medicare patients by sex, 2024
- Women10852%
- Men10048%
Chronic conditions among Dr. Maynard's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Anxiety36%
- Stroke or TIA31%
- Diabetes30%
- Mood disorders29%
- Chronic kidney disease26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Maynard's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women49%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ken Maynard III wrote 138 Medicare Part D claims in 2024
In 2024, Dr. Maynard wrote 138 Medicare Part D claims for 59 patients. 99% of them were for generic drugs. CMS names the drug for 122 of them, across 5 drugs with 11 or more claims each, at $1,189 in total drug cost. In 2023, CMS named 15 claims across 1 drug.
Part D claims, 2024138
Drugs named by CMS5
Total drug cost$1,189
Part D patients59
Dr. Maynard's Part D claims by kind of drug, 2024
- Generic137 claims99%
- Brand-name and other1 claims1%
Dr. Maynard's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Maynard's Part D claims, 2024
- Opioids28%39 of 138 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 152024: 122713%
Drugs named by CMS: 5 in 2024, 1 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Ken Maynard III ranks in the 65th percentile for spinal fusion in Medicare
Dr. Maynard accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 73 procedures of spinal fusion by Dr. Maynard, more than 65% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Maynard ranks in Medicare procedure volume
- Spinal fusion
- 65th percentile73 procedures
- Laminectomy or laminotomy (partial removal of spine bones)
- 65th percentile34 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Ken Maynard III has 8 publications on record
Dmand AI links 8 papers to Dr. Maynard, published from 2016 to 2024. 2019 was the busiest year, with 4. Dr. Maynard's most frequent co-authors are Rishi Rajiv Lall, MD, Randall Zain Allison, MD and Rudy Briner, MD.
Papers8
Years published2016 to 2024
Dr. Maynard's papers by year, 2016 to 2024
Dr. Maynard's most frequent co-authors
- Rishi Rajiv Lall, MD4 shared papers
- Randall Zain Allison, MD2 shared papers
- Rudy Briner, MD1 shared paper
Recent publications by Dr. Maynard
Constriction, PathologicDecompressionDiagnosis-Related Groups
Anastomosis, SurgicalAngiographyCentral Nervous System Vascular Malformations
See who Dr. Maynard researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Maynard works with, so you can find a warm path to the right neurosurgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ken Maynard III received $3,415 in industry payments from 2016 to 2025
CMS Open Payments shows 45 general payments to Dr. Maynard from 12 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 66% of the total. Globus Medical, Inc. paid the most, $1,734.
General payments to Dr. Maynard by program year, 2016 to 2025
General payments to Dr. Maynard by kind, 2016 to 2025
$3.4Kin total
- Food and beverage$2,25766%
- Travel and lodging$1,15934%
Companies that paid Dr. Maynard the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Ken Maynard III's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Ken Maynard III
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Ken Maynard III's NPI number?
Dr. Ken Maynard III's NPI number is 1861812372. It was assigned on April 23, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Ken Maynard III?
Dr. Ken Maynard III is a neurosurgeon in Portsmouth, New Hampshire. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).
Where does Dr. Ken Maynard III practice?
Dr. Maynard practices at 330 Borthwick Ave, Portsmouth, NH 03801. Dr. Maynard's primary practice is Appledore Medical Group - HOPD in Portsmouth, New Hampshire. Dmand AI also links Dr. Maynard to 4 hospitals, 2 group practices and clinics and 1 medical group.
What is Dr. Ken Maynard III's medical license number?
Dr. Maynard holds New Hampshire license 24589, one of the licenses on file in 3 states.
Which states has Dr. Ken Maynard III been licensed in?
Dmand AI has state licenses on file for Dr. Maynard in New Hampshire, Rhode Island and Texas.
Which hospitals is Dr. Ken Maynard III affiliated with?
Dr. Maynard is affiliated with Portsmouth Regional Hospital. Dmand AI links Dr. Maynard to 4 more hospitals.
What medical group is Dr. Ken Maynard III part of?
Dr. Maynard is linked to Portsmouth Internal Medicine. Dmand AI links Dr. Maynard to 1 more medical group.
Does Dr. Ken Maynard III accept Medicare?
Yes. CMS data shows Dr. Maynard billed Medicare for 344 services in 2024, and Dr. Maynard accepts Medicare assignment.
How many Medicare patients does Dr. Ken Maynard III see?
CMS counts 208 Medicare patients who saw Dr. Maynard in 2024, with an average age of 74.
What services does Dr. Ken Maynard III bill to Medicare?
In 2024, Dr. Maynard's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99212) and hospital inpatient care (99222).
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What drugs does Dr. Ken Maynard III prescribe most?
In 2024 Medicare Part D data, Dr. Maynard's most prescribed drugs by claims were Oxycodone HCl, Methylprednisolone and Gabapentin.
Has Dr. Ken Maynard III received payments from drug or device companies?
CMS Open Payments shows $3,415 in general payments to Dr. Maynard from 12 companies from 2016 to 2025. The largest total came from Globus Medical, Inc.
How long has Dr. Ken Maynard III been practicing?
Dr. Maynard graduated from medical school in 2014, 12 years ago.
Does Dr. Ken Maynard III do research?
Dmand AI links 8 publications to Dr. Maynard, published from 2016 to 2024.
Who does Dr. Ken Maynard III publish with?
Dr. Maynard's most frequent co-authors are Rishi Rajiv Lall, MD (4 shared papers), Randall Zain Allison, MD (2 shared papers) and Rudy Briner, MD (1 shared paper).
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