BrainCentral Nervous System NeoplasmsCerebellar Ataxia
Dr. Lloyd M. Alderson, MD
NPI1053368787
- Medicare services, 2024
- 733
- Medicare patients, 2024
- 545
- Part D claims, 2024
- 3,649
- Publications
- 4
- MIPS score, 2024
- 50
- Practice address
- 333 Borthwick Ave, Portsmouth, NH 03801
- Practice phone
- Call (603) 436-6115
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Appledore Medical Group, Inc
Portsmouth, New Hampshire
Find Dr. Alderson's professional email, personal email and mobile number
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Dr. Lloyd M. Alderson is a neurologist in Portsmouth, New Hampshire
Dr. Alderson practices at Appledore Medical Group, Inc in Portsmouth, New Hampshire.
Dr. Alderson's NPI, 1053368787, was assigned on May 28, 2006. Dr. Alderson graduated from UMass Chan Medical School in 1988. Dr. Alderson's Massachusetts license number on file is 78411.
NPI and contact details
- NPI
- 1053368787NPI Registry (opens in a new tab)
- NPI enumeration date
- May 28, 2006
- NPI status
- Active
- Practice phone
- (603) 436-6115
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Lloyd M. Alderson practices at Appledore Medical Group, Inc in Portsmouth, New Hampshire
Dr. Alderson's primary practice is Appledore Medical Group, Inc, at 333 Borthwick Ave, Portsmouth, NH 03801 in Rockingham County. The practice phone is (603) 436-6115.
- Appledore Medical Group, Inc333 Borthwick Ave, Portsmouth, NH 03801 · Rockingham CountyPhone(603) 436-6115
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Lloyd M. Alderson is affiliated with 3 sites of care and 2 medical groups
Dr. Alderson's primary practice is Appledore Medical Group, Inc in Portsmouth, New Hampshire. Dr. Alderson is also affiliated with Portsmouth Regional Hospital. The medical group on file is Portsmouth Internal Medicine. Dmand AI also links Dr. Alderson to 1 more group practice or clinic and 1 medical group, each named with a free account.
Appledore Medical Group, IncPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Lloyd M. Alderson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Alderson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Appledore Medical Group, Inc | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Lloyd M. Alderson is one of 96 neurologists in New Hampshire
Neurology is Dr. Alderson's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dmand AI has Dr. Alderson's licenses on file in 4 states: Massachusetts, New Hampshire, North Carolina and Rhode Island.
Specialties and state licenses
- Neurology, MassachusettsPrimary
- New Hampshire license
- North Carolina license
- Rhode Island license
Clinical focus
Dmand AI lists acute mini-stroke (TIA), alzheimer's disease, carpal tunnel syndrome, cerebrovascular disease, epilepsy, essential tremor, fibromyalgia and chronic pain and head injury among the conditions Dr. Alderson treats.
Neurologists near Dr. Alderson
Counts of neurologists with a Dmand AI profile, by place and practice. Each opens the list.
96neurologists in New Hampshire
8neurologists in Portsmouth
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Lloyd M. Alderson billed Medicare for 733 services in 2024
CMS data shows 733 Medicare services from Dr. Alderson across 3 procedure codes in 2024, all of them office visits, for 545 Medicare patients. Medicare paid $86,247 for them. Every service was in an office.
Medicare services, 2024733
Medicare patients545
Paid by Medicare$86,247
Procedure codes3
Dr. Alderson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 8062024: 7339%
Dr. Alderson compared with the New Hampshire median for neurologists, 2024
- Dr. Alderson
- New Hampshire median
- Medicare services
- 733vs 46059% above
- Medicare patients
- 545vs 2562.1 times
- Part D claims
- 3,368vs 5166.5 times
Medians across 102 neurologists in New Hampshire with Dmand AI profiles that report each measure.
Dr. Alderson'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.
Need commercial claims for Dr. Alderson?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Alderson and other neurologists in New Hampshire.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Lloyd M. Alderson treated 545 Medicare patients in 2024, average age 75
CMS counts 545 Medicare patients who saw Dr. Alderson in 2024. The largest group is 75 to 84, with 246 patients. 75% of them have high cholesterol, and 70% have high blood pressure. 10% are also on Medicaid. Their average risk score is 1.17, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Alderson's median patient age at 68, with 69% women.
Medicare patients, 2024545
Average age75
Average risk score1.17
Also on Medicaid10%
Dr. Alderson's Medicare patients by age, 2024
Dr. Alderson's Medicare patients by sex, 2024
- Women30055%
- Men24545%
Chronic conditions among Dr. Alderson's Medicare patients, 2024
- High cholesterol75%
- High blood pressure70%
- Arthritis45%
- Anxiety33%
- Mood disorders30%
- Depression27%
- Ischemic heart disease23%
- Diabetes20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Alderson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women69%
- Men31%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Lloyd M. Alderson wrote 3,649 Medicare Part D claims in 2024
In 2024, Dr. Alderson wrote 3,649 Medicare Part D claims for 522 patients. 91% of them were for generic drugs. CMS names the drug for 3,368 of them, across 68 drugs with 11 or more claims each, at $571,490 in total drug cost. In 2023, CMS named 1,569 claims across 42 drugs.
Part D claims, 20243,649
Drugs named by CMS68
Total drug cost$571,490
Part D patients522
Dr. Alderson's Part D claims by kind of drug, 2024
- Generic3,310 claims91%
- Brand-name and other339 claims9%
Dr. Alderson'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. Alderson's Part D claims, 2024
- Opioids1%29 of 3,649 claims
- Antipsychotics, patients 65 and over1%51 of 3,649 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: 1,5692024: 3,368115%
Drugs named by CMS: 68 in 2024, 42 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. Lloyd M. Alderson scored 50 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 50 out of 100 for Dr. Alderson for performance year 2024, reported individually.
Dr. Alderson's MIPS scores, performance year 2024
- 50of 100Final score
- 64.3of 100Quality
- 0of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Lloyd M. Alderson has 4 publications on record
Dmand AI links 4 papers to Dr. Alderson. The most frequent topics are Magnetic Resonance Imaging, Astrocytoma and Brain Neoplasms. Dr. Alderson's most frequent co-authors are Fred Harvey Hochberg, MD and Michael Brian Sisti, MD.
Papers4
Topics Dr. Alderson writes about most
- Magnetic Resonance Imaging
- Astrocytoma
- Brain Neoplasms
- Diagnosis, Differential
Dr. Alderson's most frequent co-authors
Recent publications by Dr. Alderson
ApoptosisAstrocytomaGene Expression
J Neurol Neurosurg Psychiatry
Adrenal Cortex HormonesBiopsyBrain Neoplasms
AstrocytomaBrain NeoplasmsCarotid Arteries
See who Dr. Alderson researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Alderson works with, so you can find a warm path to the right neurologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Lloyd M. Alderson received $452 in industry payments from 2016 to 2024
CMS Open Payments shows 27 general payments to Dr. Alderson from 13 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 95% of the total. Abbvie Inc. paid the most, $133.
General payments to Dr. Alderson by program year, 2016 to 2024
General payments to Dr. Alderson by kind, 2016 to 2024
$452in total
- Food and beverage$43095%
- Speaker and faculty fees$225%
Companies that paid Dr. Alderson the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Lloyd M. Alderson graduated from UMass Chan Medical School
Dr. Alderson graduated from UMass Chan Medical School in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Lloyd M. Alderson accepts plans from 9 insurance carriers
Dr. Alderson is in network with 9 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- Cigna
- HCSC
- Humana
- Regence Health Plans
- CMS Medicare
- +1 more carriersWith a free account
Plan types Dr. Alderson accepts, by number of carriers
- Medicare8
- PPO7
- HMO2
- POS2
- EPO1
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Lloyd M. Alderson'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy 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 | Clinician Public Reporting: Overall MIPS Performance (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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| 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. Lloyd M. Alderson
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. Lloyd M. Alderson's NPI number?
Dr. Lloyd M. Alderson's NPI number is 1053368787. It was assigned on May 28, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Lloyd M. Alderson?
Dr. Lloyd M. Alderson is a neurologist in Portsmouth, New Hampshire. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Lloyd M. Alderson practice?
Dr. Alderson practices at 333 Borthwick Ave, Portsmouth, NH 03801. Dr. Alderson's primary practice is Appledore Medical Group, Inc in Portsmouth, New Hampshire. Dmand AI also links Dr. Alderson to 1 group practice or clinic and 1 medical group.
What is Dr. Lloyd M. Alderson's office phone number?
The practice phone on file for Dr. Alderson is (603) 436-6115.
What is Dr. Lloyd M. Alderson's medical license number?
Dr. Alderson's Massachusetts license number on file is 78411, one of the licenses on file in 4 states.
Which states has Dr. Lloyd M. Alderson been licensed in?
Dmand AI has state licenses on file for Dr. Alderson in Massachusetts (1993 to 2024), New Hampshire (2022 to 2026), North Carolina (2011 to 2013) and Rhode Island (1996 to 2003).
Which hospitals is Dr. Lloyd M. Alderson affiliated with?
Dr. Alderson is affiliated with Portsmouth Regional Hospital.
What medical group is Dr. Lloyd M. Alderson part of?
Dr. Alderson is linked to Portsmouth Internal Medicine. Dmand AI links Dr. Alderson to 1 more medical group.
Does Dr. Lloyd M. Alderson accept Medicare?
Yes. CMS data shows Dr. Alderson billed Medicare for 733 services in 2024.
What is Dr. Lloyd M. Alderson's MIPS score?
Dr. Alderson's MIPS final score for performance year 2024 is 50 out of 100, reported individually.
Show 9 more questionsShow fewer questions
How many Medicare patients does Dr. Lloyd M. Alderson see?
CMS counts 545 Medicare patients who saw Dr. Alderson in 2024, with an average age of 75.
What services does Dr. Lloyd M. Alderson bill to Medicare?
In 2024, Dr. Alderson's most billed Medicare services were office visit, established patient (99215), office visit, established patient (99214) and office visit, new patient (99204).
Where did Dr. Lloyd M. Alderson go to medical school?
Dr. Alderson graduated from UMass Chan Medical School in 1988.
What drugs does Dr. Lloyd M. Alderson prescribe most?
In 2024 Medicare Part D data, Dr. Alderson's most prescribed drugs by claims were Memantine HCl, Gabapentin and Levetiracetam.
Has Dr. Lloyd M. Alderson received payments from drug or device companies?
CMS Open Payments shows $452 in general payments to Dr. Alderson from 13 companies from 2016 to 2024. The largest total came from Abbvie Inc.
How long has Dr. Lloyd M. Alderson been practicing?
Dr. Alderson graduated from medical school in 1988, 38 years ago.
Does Dr. Lloyd M. Alderson do research?
Dmand AI links 4 publications to Dr. Alderson.
Who does Dr. Lloyd M. Alderson publish with?
Dr. Alderson's most frequent co-authors are Fred Harvey Hochberg, MD (1 shared paper) and Michael Brian Sisti, MD (1 shared paper).
What insurance does Dr. Lloyd M. Alderson accept?
Dr. Alderson is in network with 9 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
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