Dr. John P. Griffin, MD
- Medicare services, 2024
- 547
- Medicare patients, 2024
- 127
- Part D claims, 2024
- 73
- MIPS score, 2024
- 98
- Hospital affiliations
- 1
- Practice address
- 630 Ocean Ave, Portland, ME 04103
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
The Cedars - Portland
Continuing Care Retirement Community (CCRC) · Portland, Maine
Find Dr. Griffin's professional email, personal email and mobile number
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Dr. John P. Griffin is a general surgeon in Portland, Maine
Dr. Griffin practices at The Cedars - Portland in Portland, Maine.
Dr. Griffin's NPI, 1073526307, was assigned on August 15, 2006. Dr. Griffin graduated from Jefferson Medical College of Thomas Jefferson University in 2001. Dr. Griffin holds Maine license 018265.
- NPI
- 1073526307NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2365447505
- NPI enumeration date
- August 15, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John P. Griffin practices at The Cedars - Portland in Portland, Maine
Dr. Griffin's primary practice is The Cedars - Portland, at 630 Ocean Ave, Portland, ME 04103 in Cumberland County.
- The Cedars - Portland630 Ocean Ave, Portland, ME 04103 · Cumberland County
Source: Dmand AI Affiliation Data
Dr. John P. Griffin is affiliated with 5 sites of care and 3 medical groups
Dr. Griffin's primary practice is The Cedars - Portland in Portland, Maine. Dr. Griffin is also affiliated with MaineHealth Maine Medical Center. The medical group on file is MaineHealth Primary Care - Family Medicine - Portland. Dmand AI also links Dr. Griffin to 2 more skilled nursing facilities, 2 medical groups and 1 home health agency, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John P. Griffin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Griffin practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The Cedars - Portland | Available with a free account |
| +4 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John P. Griffin is one of 191 general surgeons in Maine
Surgery is Dr. Griffin's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Griffin is licensed in Maine.
Specialties and state licenses
- Surgery, MainePrimary
General surgeons near Dr. Griffin
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. John P. Griffin billed Medicare for 547 services in 2024
CMS data shows 547 Medicare services from Dr. Griffin across 11 procedure codes in 2024, for 127 Medicare patients. Medicare paid $25,624 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Griffin's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 4122024: 29927%
- Office and hospital visits
- 2023: 6862024: 24864%
Dr. Griffin compared with the Maine median for general surgeons, 2024
- Dr. Griffin
- Maine median
- Medicare services
- 547vs 787.0 times
- Medicare patients
- 127vs 8943% above
- Part D claims
- 47vs 2774% above
Medians across 191 general surgeons in Maine with Dmand AI profiles that report each measure.
Dr. Griffin'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. Griffin and other general surgeons in Maine.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John P. Griffin treated 127 Medicare patients in 2024, average age 75
CMS counts 127 Medicare patients who saw Dr. Griffin in 2024. The largest group is 75 to 84, with 41 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 44% are also on Medicaid. Their average risk score is 2.67, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Griffin's median patient age at 74, with 44% women.
Dr. Griffin's Medicare patients by age, 2024
Dr. Griffin's Medicare patients by sex, 2024
- Women6652%
- Men6148%
Chronic conditions among Dr. Griffin's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis62%
- Diabetes54%
- Chronic kidney disease52%
- Heart failure48%
- Anxiety45%
- Mood disorders43%
Share of Medicare patients with each condition. A patient can have several.
Dr. Griffin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women44%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John P. Griffin wrote 73 Medicare Part D claims in 2024
In 2024, Dr. Griffin wrote 73 Medicare Part D claims for 47 patients. 96% of them were for generic drugs. CMS names the drug for 47 of them, across 3 drugs with 11 or more claims each, at $276 in total drug cost. In 2020, CMS named 20 claims across 1 drug.
Dr. Griffin's Part D claims by kind of drug, 2024
- Generic70 claims96%
- Brand-name and other3 claims4%
Dr. Griffin'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. Griffin's Part D claims, 2024
- Antibiotics37%27 of 73 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, 2020 to 2024
- 2020
- 2024
- Claims for drugs CMS names
- 2020: 202024: 47135%
Drugs named by CMS: 3 in 2024, 1 in 2020.
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. John P. Griffin scored 98 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 98 out of 100 for Dr. Griffin for performance year 2024, reported through an alternative payment model (APM). Dr. Griffin accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Griffin as offering telehealth. CMS counts 350 procedures of removal of tissue by Dr. Griffin, more than 95% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Griffin's MIPS scores, performance year 2024
- 98of 100Final score
- 83.3of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Griffin ranks in Medicare procedure volume
- Removal of tissue
- 95th percentile350 procedures
- Removal of skin lesions
- 68th percentile28 procedures
- Skin biopsy
- 60th percentile13 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. John P. Griffin received $462 in industry payments from 2024 to 2025
CMS Open Payments shows 5 general payments to Dr. Griffin from 2 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. MIMEDX Group, Inc. paid the most, $386.
General payments to Dr. Griffin by program year, 2024 to 2025
Companies that paid Dr. Griffin the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John P. Griffin graduated from Jefferson Medical College of Thomas Jefferson University
Dr. Griffin graduated from Jefferson Medical College of Thomas Jefferson University in 2001.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John P. Griffin'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 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 | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. John P. Griffin
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. John P. Griffin's NPI number?
Dr. John P. Griffin's NPI number is 1073526307. It was assigned on August 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John P. Griffin?
Dr. John P. Griffin is a general surgeon in Portland, Maine. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. John P. Griffin practice?
Dr. Griffin practices at 630 Ocean Ave, Portland, ME 04103. Dr. Griffin's primary practice is The Cedars - Portland in Portland, Maine. Dmand AI also links Dr. Griffin to 2 skilled nursing facilities, 2 medical groups and 1 home health agency.
What is Dr. John P. Griffin's medical license number?
Dr. Griffin holds Maine license 018265.
Which hospitals is Dr. John P. Griffin affiliated with?
Dr. Griffin is affiliated with MaineHealth Maine Medical Center.
What medical group is Dr. John P. Griffin part of?
Dr. Griffin is linked to MaineHealth Primary Care - Family Medicine - Portland. Dmand AI links Dr. Griffin to 2 more medical groups.
Does Dr. John P. Griffin accept Medicare?
Yes. CMS data shows Dr. Griffin billed Medicare for 547 services in 2024, and Dr. Griffin accepts Medicare assignment.
Does Dr. John P. Griffin offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Griffin as offering telehealth services.
What is Dr. John P. Griffin's MIPS score?
Dr. Griffin's MIPS final score for performance year 2024 is 98 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. John P. Griffin see?
CMS counts 127 Medicare patients who saw Dr. Griffin in 2024, with an average age of 75.
Show 5 more questionsShow fewer questions
What services does Dr. John P. Griffin bill to Medicare?
In 2024, Dr. Griffin's most billed Medicare services were surgery: skin and soft tissue (11042), office visit, established patient (99213) and office visit, established patient (99212).
Where did Dr. John P. Griffin go to medical school?
Dr. Griffin graduated from Jefferson Medical College of Thomas Jefferson University in 2001.
What drugs does Dr. John P. Griffin prescribe most?
In 2024 Medicare Part D data, Dr. Griffin's most prescribed drugs by claims were Mupirocin, Triamcinolone Acetonide and Sulfamethoxazole-Trimethoprim.
Has Dr. John P. Griffin received payments from drug or device companies?
CMS Open Payments shows $462 in general payments to Dr. Griffin from 2 companies from 2024 to 2025. The largest total came from MIMEDX Group, Inc.
How long has Dr. John P. Griffin been practicing?
Dr. Griffin graduated from medical school in 2001, 25 years ago.
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