Dr. Grant B. Oakley, DO
- Medicare services, 2024
- 721
- Medicare patients, 2024
- 237
- Part D claims, 2024
- 546
- MIPS score, 2024
- 98
- Hospital affiliations
- 1
- Practice address
- 29 Barra Road, Biddeford, ME 04005
- Practice phone
- Call (207) 282-3908
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Fresenius Kidney Care York County
Dialysis Center - Independent · Biddeford, Maine
Find Dr. Oakley's professional email, personal email and mobile number
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Dr. Grant B. Oakley is a nephrologist in Biddeford, Maine
Dr. Oakley practices at Fresenius Kidney Care York County in Biddeford, Maine.
Dr. Oakley's NPI, 1679927537, was assigned on April 18, 2016. Dr. Oakley graduated from Lake Erie College of Osteopathic Medicine, Erie in 2016. Dr. Oakley holds Maine license DO3180.
- NPI
- 1679927537NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7012208721
- NPI enumeration date
- April 18, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (207) 282-3908
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Grant B. Oakley practices at Fresenius Kidney Care York County in Biddeford, Maine
Dr. Oakley's primary practice is Fresenius Kidney Care York County, at 29 Barra Road, Biddeford, ME 04005 in York County. The practice phone is (207) 282-3908.
- Fresenius Kidney Care York County29 Barra Road, Biddeford, ME 04005 · York CountyPhone(207) 282-3908
Source: Dmand AI Affiliation Data
Dr. Grant B. Oakley is affiliated with 5 sites of care and 2 medical groups
Dr. Oakley's primary practice is Fresenius Kidney Care York County in Biddeford, Maine. Dr. Oakley 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. Oakley to 2 more group practices and clinics, 1 dialysis center and 1 medical group, 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. Grant B. Oakley's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Oakley practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fresenius Kidney Care York County | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Grant B. Oakley is one of 38 nephrologists in Maine
Nephrology is Dr. Oakley's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dmand AI has Dr. Oakley's licenses on file in 2 states: Maine and North Carolina.
Specialties and state licenses
- Nephrology, MainePrimary
- Student in an organized health care education/training program, North Carolina
Nephrologists near Dr. Oakley
Counts of nephrologists 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. Grant B. Oakley billed Medicare for 721 services in 2024
CMS data shows 721 Medicare services from Dr. Oakley across 9 procedure codes in 2024, for 237 Medicare patients. Medicare paid $132,255 for them.
Dr. Oakley's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 5512024: 46715%
- Office and hospital visits
- 2023: 3272024: 25422%
Where Dr. Oakley's Medicare services took place, 2024
- In an office47566%
- In a facility24634%
Dr. Oakley compared with the Maine median for nephrologists, 2024
- Dr. Oakley
- Maine median
- Medicare services
- 721vs 41175% above
- Medicare patients
- 237vs 18429% above
- Part D claims
- 358vs 358Close to median
Medians across 40 nephrologists in Maine with Dmand AI profiles that report each measure.
Dr. Oakley'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. Oakley and other nephrologists in Maine.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Grant B. Oakley treated 237 Medicare patients in 2024, average age 71
CMS counts 237 Medicare patients who saw Dr. Oakley in 2024. The largest group is 65 to 74, with 81 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 32% are also on Medicaid. Their average risk score is 4.82, 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. Oakley's median patient age at 71, with 44% women.
Dr. Oakley's Medicare patients by age, 2024
Dr. Oakley's Medicare patients by sex, 2024
- Women10544%
- Men13256%
Chronic conditions among Dr. Oakley's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes55%
- Heart failure54%
- Arthritis46%
- Ischemic heart disease46%
- Atrial fibrillation36%
Share of Medicare patients with each condition. A patient can have several.
Dr. Oakley's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women44%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Grant B. Oakley wrote 546 Medicare Part D claims in 2024
In 2024, Dr. Oakley wrote 546 Medicare Part D claims for 131 patients. 92% of them were for generic drugs. CMS names the drug for 358 of them, across 13 drugs with 11 or more claims each, at $32,747 in total drug cost. In 2023, CMS named 372 claims across 14 drugs.
Dr. Oakley's Part D claims by kind of drug, 2024
- Generic500 claims92%
- Brand-name46 claims8%
Dr. Oakley'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. Oakley's Part D claims, 2024
- Antibiotics3%18 of 546 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: 3722024: 3584%
Drugs named by CMS: 13 in 2024, 14 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. Grant B. Oakley 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. Oakley for performance year 2024, reported through an alternative payment model (APM). Dr. Oakley accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Oakley as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Oakley'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.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Grant B. Oakley graduated from Lake Erie College of Osteopathic Medicine, Erie
Dr. Oakley graduated from Lake Erie College of Osteopathic Medicine, Erie in 2016.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Grant B. Oakley'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) |
| 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. Grant B. Oakley
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. Grant B. Oakley's NPI number?
Dr. Grant B. Oakley's NPI number is 1679927537. It was assigned on April 18, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Grant B. Oakley?
Dr. Grant B. Oakley is a nephrologist in Biddeford, Maine. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Grant B. Oakley practice?
Dr. Oakley practices at 29 Barra Road, Biddeford, ME 04005. Dr. Oakley's primary practice is Fresenius Kidney Care York County in Biddeford, Maine. Dmand AI also links Dr. Oakley to 2 group practices and clinics, 1 dialysis center and 1 medical group.
What is Dr. Grant B. Oakley's office phone number?
The practice phone on file for Dr. Oakley is (207) 282-3908.
What is Dr. Grant B. Oakley's medical license number?
Dr. Oakley holds Maine license DO3180, one of the licenses on file in 2 states.
Which states has Dr. Grant B. Oakley been licensed in?
Dmand AI has state licenses on file for Dr. Oakley in Maine and North Carolina.
Which hospitals is Dr. Grant B. Oakley affiliated with?
Dr. Oakley is affiliated with MaineHealth Maine Medical Center.
What medical group is Dr. Grant B. Oakley part of?
Dr. Oakley is linked to MaineHealth Primary Care - Family Medicine - Portland. Dmand AI links Dr. Oakley to 1 more medical group.
Does Dr. Grant B. Oakley accept Medicare?
Yes. CMS data shows Dr. Oakley billed Medicare for 721 services in 2024, and Dr. Oakley accepts Medicare assignment.
Does Dr. Grant B. Oakley offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Oakley as offering telehealth services.
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What is Dr. Grant B. Oakley's MIPS score?
Dr. Oakley'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. Grant B. Oakley see?
CMS counts 237 Medicare patients who saw Dr. Oakley in 2024, with an average age of 71.
What services does Dr. Grant B. Oakley bill to Medicare?
In 2024, Dr. Oakley's most billed Medicare services were dialysis (90960), dialysis (90961) and office visit, established patient (99214).
Where did Dr. Grant B. Oakley go to medical school?
Dr. Oakley graduated from Lake Erie College of Osteopathic Medicine, Erie in 2016.
What drugs does Dr. Grant B. Oakley prescribe most?
In 2024 Medicare Part D data, Dr. Oakley's most prescribed drugs by claims were Amlodipine Besylate, Lisinopril and Losartan Potassium.
How long has Dr. Grant B. Oakley been practicing?
Dr. Oakley graduated from medical school in 2016, 10 years ago.
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