Dr. Harold Avon Doll Jr., MD
- Medicare services, 2024
- 872
- Medicare patients, 2024
- 284
- Part D claims, 2024
- 2,370
- MIPS score, 2024
- 75
- Hospital affiliations
- 4
- Practice address
- 2617 Mitcham Dr, Tallahassee, FL 32308
- Practice phone
- Call (850) 973-3852
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Four Freedoms Dialysis
Tallahassee, Florida
Find Dr. Doll's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Harold Avon Doll Jr. is a nephrologist in Tallahassee, Florida
Dr. Doll practices at Four Freedoms Dialysis in Tallahassee, Florida.
Dr. Doll's NPI, 1093717654, was assigned on August 12, 2005. Dr. Doll graduated from Oral Roberts University School of Medicine in 1985. Dr. Doll holds Florida license ME48984.
- NPI
- 1093717654NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0547342834
- NPI enumeration date
- August 12, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (850) 973-3852
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Harold Avon Doll Jr. practices at Four Freedoms Dialysis in Tallahassee, Florida
Dr. Doll's primary practice is Four Freedoms Dialysis, at 2617 Mitcham Dr, Tallahassee, FL 32308 in Leon County. The practice phone is (850) 973-3852.
- Four Freedoms Dialysis2617 Mitcham Dr, Tallahassee, FL 32308 · Leon CountyPhone(850) 973-3852
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Harold Avon Doll Jr. is affiliated with 9 sites of care and 2 medical groups
Dr. Doll's primary practice is Four Freedoms Dialysis in Tallahassee, Florida. Dr. Doll is also affiliated with Tallahassee Memorial Hospital. The medical group on file is North Florida Nephrology Associates. Dmand AI also links Dr. Doll to 3 more hospitals, 2 dialysis centers, 2 group practices and clinics and 1 medical group, each named with a free account.
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. Harold Avon Doll Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Doll practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Four Freedoms Dialysis | Available with a free account |
| +8 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Harold Avon Doll Jr. is one of 917 nephrologists in Florida
Nephrology is Dr. Doll's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Doll is board certified in internal medicine by the American Board of Internal Medicine. Dr. Doll is licensed in Florida.
Specialties and state licenses
- Nephrology, FloridaPrimary
Clinical focus
Dmand AI lists acute kidney failure, chronic kidney disease, fluid and electrolyte imbalances and parathyroid gland disorder among the conditions Dr. Doll treats.
Nephrologists near Dr. Doll
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. Harold Avon Doll Jr. billed Medicare for 872 services in 2024
CMS data shows 872 Medicare services from Dr. Doll across 8 procedure codes in 2024, for 284 Medicare patients. Medicare paid $146,352 for them.
Dr. Doll's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 6672024: 49126%
- Office and hospital visits
- 2023: 5982024: 38136%
Where Dr. Doll's Medicare services took place, 2024
- In an office70180%
- In a facility17120%
Dr. Doll compared with the Florida median for nephrologists, 2024
- Dr. Doll
- Florida median
- Medicare services
- 872vs 1,49041% below
- Medicare patients
- 284vs 38727% below
- Part D claims
- 1,982vs 9342.1 times
Medians across 882 nephrologists in Florida with Dmand AI profiles that report each measure.
Dr. Doll'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. Doll and other nephrologists in Florida.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Harold Avon Doll Jr. treated 284 Medicare patients in 2024, average age 73
CMS counts 284 Medicare patients who saw Dr. Doll in 2024. The largest group is 75 to 84, with 101 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 28% are also on Medicaid. Their average risk score is 5.02, 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. Doll's median patient age at 72, with 41% women.
Dr. Doll's Medicare patients by age, 2024
Dr. Doll's Medicare patients by sex, 2024
- Women12644%
- Men15856%
Chronic conditions among Dr. Doll's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes62%
- Heart failure51%
- Ischemic heart disease48%
- Arthritis46%
- Atrial fibrillation33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Doll's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women41%
- Men59%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Harold Avon Doll Jr. wrote 2,370 Medicare Part D claims in 2024
In 2024, Dr. Doll wrote 2,370 Medicare Part D claims for 386 patients. 83% of them were for generic drugs. CMS names the drug for 1,982 of them, across 54 drugs with 11 or more claims each, at $367,538 in total drug cost. In 2023, CMS named 1,905 claims across 48 drugs.
Dr. Doll's Part D claims by kind of drug, 2024
- Generic1,956 claims83%
- Brand-name and other414 claims17%
Dr. Doll'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. Doll's Part D claims, 2024
- Antibiotics2%59 of 2,370 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: 1,9052024: 1,9824%
Drugs named by CMS: 54 in 2024, 48 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. Harold Avon Doll Jr. scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Doll for performance year 2024, reported as part of a group. Dr. Doll accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
- MIPS final score, 2024
- 75 of 100
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. Harold Avon Doll Jr. received $512 in industry payments from 2017 to 2025
CMS Open Payments shows 13 general payments to Dr. Doll from 9 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 92% of the total. Amgen Inc. paid the most, $141.
General payments to Dr. Doll by program year, 2017 to 2025
General payments to Dr. Doll by kind, 2017 to 2025
- Food and beverage$47292%
- Education$398%
Companies that paid Dr. Doll the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Harold Avon Doll Jr. has 1 award and honors on record
Dmand AI lists 1 award for Dr. Doll, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Doll
- 2013
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Harold Avon Doll Jr. graduated from Oral Roberts University School of Medicine
Dr. Doll graduated from Oral Roberts University School of Medicine in 1985.
- Medical school
- Board certified in internal medicine
- Board certified in nephrology
Source: Dmand AI Professional Profile Data
Dr. Harold Avon Doll Jr. accepts plans from 18 insurance carriers
Dr. Doll is in network with 18 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Aspirus Health Plan
- Blue Cross Blue Shield of Massachusetts
- Humana
- +10 more carriersWith a free account
Plan types Dr. Doll accepts, by number of carriers
- PPO11
- Medicare9
- HMO8
- POS5
- EPO4
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Harold Avon Doll Jr.'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 | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Harold Avon Doll Jr.
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. Harold Avon Doll Jr.'s NPI number?
Dr. Harold Avon Doll Jr.'s NPI number is 1093717654. It was assigned on August 12, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Harold Avon Doll Jr.?
Dr. Harold Avon Doll Jr. is a nephrologist in Tallahassee, Florida. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Harold Avon Doll Jr. practice?
Dr. Doll practices at 2617 Mitcham Dr, Tallahassee, FL 32308. Dr. Doll's primary practice is Four Freedoms Dialysis in Tallahassee, Florida. Dmand AI also links Dr. Doll to 3 hospitals, 2 dialysis centers, 2 group practices and clinics and 1 medical group.
What is Dr. Harold Avon Doll Jr.'s office phone number?
The practice phone on file for Dr. Doll is (850) 973-3852.
What is Dr. Harold Avon Doll Jr.'s medical license number?
Dr. Doll holds Florida license ME48984.
Which hospitals is Dr. Harold Avon Doll Jr. affiliated with?
Dr. Doll is affiliated with Tallahassee Memorial Hospital. Dmand AI links Dr. Doll to 3 more hospitals.
What medical group is Dr. Harold Avon Doll Jr. part of?
Dr. Doll is linked to North Florida Nephrology Associates. Dmand AI links Dr. Doll to 1 more medical group.
Does Dr. Harold Avon Doll Jr. accept Medicare?
Yes. CMS data shows Dr. Doll billed Medicare for 872 services in 2024, and Dr. Doll accepts Medicare assignment.
What is Dr. Harold Avon Doll Jr.'s MIPS score?
Dr. Doll's MIPS final score for performance year 2024 is 75 out of 100, reported as part of a group.
How many Medicare patients does Dr. Harold Avon Doll Jr. see?
CMS counts 284 Medicare patients who saw Dr. Doll in 2024, with an average age of 73.
Show 7 more questionsShow fewer questions
Is Dr. Harold Avon Doll Jr. board certified?
Yes. Dr. Doll is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Harold Avon Doll Jr. bill to Medicare?
In 2024, Dr. Doll's most billed Medicare services were dialysis (90960), hospital inpatient care (99232) and office visit, established patient (99214).
Where did Dr. Harold Avon Doll Jr. go to medical school?
Dr. Doll graduated from Oral Roberts University School of Medicine in 1985.
What drugs does Dr. Harold Avon Doll Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Doll's most prescribed drugs by claims were Carvedilol, Amlodipine Besylate and Furosemide.
Has Dr. Harold Avon Doll Jr. received payments from drug or device companies?
CMS Open Payments shows $512 in general payments to Dr. Doll from 9 companies from 2017 to 2025. The largest total came from Amgen Inc.
How long has Dr. Harold Avon Doll Jr. been practicing?
Dr. Doll graduated from medical school in 1985, 41 years ago.
What insurance does Dr. Harold Avon Doll Jr. accept?
Dr. Doll is in network with 18 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
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