NPI registry status
Active
2026 NPPES data Pain Medicine (Anesthesiology) Physician NPI 1053581058 M.D.
Verify on CMS → Frederick Littlejohn, M.D.
Pain Medicine (Anesthesiology) Physician in Portland, Maine.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 4,020 in Pain Medicine (Anesthesiology) 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
36
Medicare Part D claims · 13 beneficiaries · Pain Medicine (Anesthesiology) Physician avg: 2K
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
Frederick Littlejohn, M.D. filed 36 Medicare Part D claims in 2023 as a Pain Medicine (Anesthesiology) Physician in Portland, Maine.
- 36
- Part D claims, 2023
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.
Frederick Littlejohn, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
36 0th percentile higher than 0% 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-eligible specialty (heuristic, not verified)
Frederick Littlejohn, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Frederick Littlejohn, M.D.?
Quality data not reportedPrimary specialty
Pain Medicine (Anesthesiology) Physician
Medicare Part D claims
36 98% vs specialty avg
Specialty distribution in Maine
How Pain Medicine (Anesthesiology) Physician compares to other specialties among Maine 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 Pain Medicine (Anesthesiology) 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).
Frederick Littlejohn, M.D. appears in the CMS NPPES registry as a Pain Medicine (Anesthesiology) Physician provider holding M.D. credentials at 1945 CONGRESS ST STE 103, Portland, ME, 04102, with a listed phone of (207) 835-8116. NPI 1053581058 was issued on 03/05/2008.
Medicare Part D records for calendar year 2023 show 36 prescription claims written by this provider, covering 13 Medicare beneficiaries and totaling roughly $818 in drug spend.
Pain Medicine (Anesthesiology) Physician is a narrow specialty nationwide, with 4,020 enrolled providers across 53 states and an average of 1,657 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 | 1053581058 |
|---|---|
| Specialty | Pain Medicine (Anesthesiology) Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 03/05/2008 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
36
Total Claims
$818
Total Drug Cost
13
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 55
- Total Day Supply
- 1,432
- Brand Drug Cost
- $0
- Generic Drug Cost
- $818
Patient Demographics
- Average Patient Age
- 70.5 years
- Avg HCC Risk Score
- 1.30
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Topiramate | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Pain Medicine (Anesthesiology) Physician in ME →
All providers in Maine →
Compare specialties →
Pain Medicine (Anesthesiology) Physician Overview
How Frederick Littlejohn, M.D. fits within the Pain Medicine (Anesthesiology) Physician landscape nationally.
4,020
Pain Medicine (Anesthesiology) Physician Providers in US
53
States with Pain Medicine (Anesthesiology) Physician
1,657
Avg Claims per Provider
Frederick Littlejohn, M.D.'s 36 claims are below the specialty average of 1,657.
Nearby Pain Medicine (Anesthesiology) Physician Providers in Maine
Other clinicians with the same primary specialty enrolled in Maine, drawn from the same CMS NPPES roster as Littlejohn.
Dr. Amir Baig
M.D.
Skowhegan, ME
Dr. Thomas Bolles
M.D.
Portland, ME
Dr. Judith Dunipace
MD
Ellsworth, ME
Dr. W Dunn
M.D.
Auburn, ME
Dr. Gregory Foos
MD
Scarborough, ME
Compare Pain Medicine (Anesthesiology) 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 Maine medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Pain Medicine (Anesthesiology) 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
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Maine
Frequently Asked Questions
What is Frederick Littlejohn, M.D.'s specialty? ▼
Frederick Littlejohn, M.D. specializes in Pain Medicine (Anesthesiology) Physician and practices in Portland, Maine. Credentials: M.D..
How much does Frederick Littlejohn, M.D. prescribe under Medicare Part D? ▼
In 2023, Frederick Littlejohn, M.D. wrote 36 Medicare Part D claims totaling $818 in drug costs for 13 beneficiaries.
Where is Frederick Littlejohn, M.D. located? ▼
Frederick Littlejohn, M.D. is located at 1945 CONGRESS ST STE 103, Portland, ME, 04102. Phone: (207) 835-8116.
What is Frederick Littlejohn, M.D.'s NPI number? ▼
Frederick Littlejohn, M.D.'s National Provider Identifier (NPI) is 1053581058, issued on 03/05/2008.
How many Pain Medicine (Anesthesiology) Physician providers are there in the US? ▼
There are 4,020 Pain Medicine (Anesthesiology) Physician providers across 53 states in the US. The average Pain Medicine (Anesthesiology) Physician provider writes 1,657 Medicare Part D claims per year.
What drugs does Frederick Littlejohn, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Frederick Littlejohn, M.D.'s most frequently prescribed drugs include Topiramate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Frederick Littlejohn, M.D. accept Medicare? ▼
Frederick Littlejohn, M.D. appears in CMS Medicare data with 36 Part D claims and 13 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Frederick Littlejohn, M.D.'s credentials? ▼
Frederick Littlejohn, M.D.'s NPI is 1053581058 with credentials M.D.. 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.