Dr. Robert Hannahan, MD
- Medicare services, 2024
- 2,250
- Medicare patients, 2024
- 204
- Part D claims, 2024
- 1,550
- Hospital affiliations
- 1
- Industry payments
- $4,818
- Practice address
- 1275 James Dr, Enterprise, AL 36330
- Practice phone
- Call (251) 599-6445
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Hannahan Comprehensive Pain Care
Enterprise, Alabama
Find Dr. Hannahan's professional email, personal email and mobile number
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Dr. Robert Hannahan is an anesthesiologist in Enterprise, Alabama
Dr. Hannahan practices at Hannahan Comprehensive Pain Care in Enterprise, Alabama.
Dr. Hannahan's NPI, 1720074818, was assigned on September 23, 2005. Dr. Hannahan graduated from Heersink School of Medicine - Birmingham in 1993. Dr. Hannahan's Alabama license number on file is 20671.
- NPI
- 1720074818NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6709844301
- NPI enumeration date
- September 23, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (251) 599-6445
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert Hannahan practices at Hannahan Comprehensive Pain Care in Enterprise, Alabama
Dr. Hannahan's primary practice is Hannahan Comprehensive Pain Care, at 1275 James Dr, Enterprise, AL 36330 in Coffee County. The practice phone is (251) 599-6445.
- Hannahan Comprehensive Pain Care1275 James Dr, Enterprise, AL 36330 · Coffee CountyPhone(251) 599-6445
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Robert Hannahan is affiliated with 3 sites of care
Dr. Hannahan's primary practice is Hannahan Comprehensive Pain Care in Enterprise, Alabama. Dr. Hannahan is also affiliated with Medical Center Enterprise. Dmand AI also links Dr. Hannahan to 1 more physician office, 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. Robert Hannahan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hannahan practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hannahan Comprehensive Pain Care | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert Hannahan is one of 526 anesthesiologists in Alabama
Anesthesiology is Dr. Hannahan's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Hannahan is board certified in anesthesiology by the American Board of Anesthesiology. Dmand AI has Dr. Hannahan's licenses on file in 3 states: Alabama, Florida and Louisiana.
Specialties and state licenses
- Anesthesiology, AlabamaPrimary
- Florida license
- Louisiana license
Clinical focus
Dmand AI lists back pain injection, drug use disorders, lower back pain, neck pain and spine problems, spinal stenosis and thoracic spine disorders among the conditions Dr. Hannahan treats.
Anesthesiologists near Dr. Hannahan
Counts of anesthesiologists 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. Robert Hannahan billed Medicare for 2,250 services in 2024
CMS data shows 2,250 Medicare services from Dr. Hannahan across 23 procedure codes in 2024, for 204 Medicare patients. Medicare paid $153,292 for them. Every service was in an office.
Dr. Hannahan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 6582024: 1,06862%
- Office and hospital visits
- 2023: 6042024: 605No change
- Surgery
- 2023: 4102024: 3954%
- Lab and pathology
- 2023: 1152024: 8229%
- Imaging
- 2023: 502024: 5918%
- Tests and treatments
- 2023: 212024: 4195%
Dr. Hannahan compared with the Alabama median for anesthesiologists, 2024
- Dr. Hannahan
- Alabama median
- Medicare services
- 2,250vs 16213.9 times
- Medicare patients
- 204vs 25821% below
- Part D claims
- 1,443vs 2753.4 times
Medians across 549 anesthesiologists in Alabama with Dmand AI profiles that report each measure.
Dr. Hannahan'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. Hannahan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hannahan and other anesthesiologists in Alabama.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert Hannahan treated 204 Medicare patients in 2024, average age 72
CMS counts 204 Medicare patients who saw Dr. Hannahan in 2024. The largest group is 65 to 74, with 93 patients. 75% of them have arthritis, and 75% have high blood pressure. 10% are also on Medicaid. Their average risk score is 1.26, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Hannahan's median patient age at 61, with 49% women.
Dr. Hannahan's Medicare patients by age, 2024
Dr. Hannahan's Medicare patients by sex, 2024
- Women11958%
- Men8542%
Chronic conditions among Dr. Hannahan's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Anxiety38%
- Diabetes35%
- Mood disorders33%
- Chronic kidney disease30%
- Depression30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hannahan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women49%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert Hannahan wrote 1,550 Medicare Part D claims in 2024
In 2024, Dr. Hannahan wrote 1,550 Medicare Part D claims for 196 patients. 95% of them were for generic drugs. CMS names the drug for 1,443 of them, across 24 drugs with 11 or more claims each, at $57,986 in total drug cost. In 2023, CMS named 1,575 claims across 25 drugs.
Dr. Hannahan's Part D claims by kind of drug, 2024
- Generic1,480 claims95%
- Brand-name70 claims5%
Dr. Hannahan'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. Hannahan's Part D claims, 2024
- Opioids37%577 of 1,550 claims
- Antibiotics10%153 of 1,550 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: 1,5752024: 1,4438%
Drugs named by CMS: 24 in 2024, 25 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
How Dr. Robert Hannahan takes part in Medicare
Dr. Hannahan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Robert Hannahan received $4,818 in industry payments from 2017 to 2025
CMS Open Payments shows 129 general payments to Dr. Hannahan from 20 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 75% of the total. Nevro Corp. paid the most, $2,060.
General payments to Dr. Hannahan by program year, 2017 to 2025
General payments to Dr. Hannahan by kind, 2017 to 2025
- Food and beverage$3,59175%
- Travel and lodging$1,16124%
- Education$421%
- Gifts$240%
Companies that paid Dr. Hannahan 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. Robert Hannahan graduated from Heersink School of Medicine - Birmingham
Dr. Hannahan graduated from Heersink School of Medicine - Birmingham in 1993. Dr. Hannahan is a member of ASA.
- Medical school
- Board certified in anesthesiology
Source: Dmand AI Professional Profile Data
Dr. Robert Hannahan accepts plans from 13 insurance carriers
Dr. Hannahan is in network with 13 carriers, including Aetna, Excellus BlueCross BlueShield and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Excellus BlueCross BlueShield
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Elevance
- Humana
- HCSC
- Alliant Health Plans
- +5 more carriersWith a free account
Plan types Dr. Hannahan accepts, by number of carriers
- PPO9
- HMO8
- EPO5
- Medicare5
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Robert Hannahan'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) |
| 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. Robert Hannahan
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. Robert Hannahan's NPI number?
Dr. Robert Hannahan's NPI number is 1720074818. It was assigned on September 23, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert Hannahan?
Dr. Robert Hannahan is an anesthesiologist in Enterprise, Alabama. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Robert Hannahan practice?
Dr. Hannahan practices at 1275 James Dr, Enterprise, AL 36330. Dr. Hannahan's primary practice is Hannahan Comprehensive Pain Care in Enterprise, Alabama. Dmand AI also links Dr. Hannahan to 1 physician office.
What is Dr. Robert Hannahan's office phone number?
The practice phone on file for Dr. Hannahan is (251) 599-6445.
What is Dr. Robert Hannahan's medical license number?
Dr. Hannahan's Alabama license number on file is 20671, one of the licenses on file in 3 states.
Which states has Dr. Robert Hannahan been licensed in?
Dmand AI has state licenses on file for Dr. Hannahan in Alabama (1997 to 2025), Florida (2019 to 2026) and Louisiana (1994 to 1997).
Which hospitals is Dr. Robert Hannahan affiliated with?
Dr. Hannahan is affiliated with Medical Center Enterprise.
Does Dr. Robert Hannahan accept Medicare?
Yes. CMS data shows Dr. Hannahan billed Medicare for 2,250 services in 2024, and Dr. Hannahan accepts Medicare assignment.
How many Medicare patients does Dr. Robert Hannahan see?
CMS counts 204 Medicare patients who saw Dr. Hannahan in 2024, with an average age of 72.
Is Dr. Robert Hannahan board certified?
Yes. Dr. Hannahan is board certified in anesthesiology by the American Board of Anesthesiology.
Show 6 more questionsShow fewer questions
What services does Dr. Robert Hannahan bill to Medicare?
In 2024, Dr. Hannahan's most billed Medicare services were office visit, established patient (99214), injected or infused drug (J3300) and injected or infused drug (J1100).
Where did Dr. Robert Hannahan go to medical school?
Dr. Hannahan graduated from Heersink School of Medicine - Birmingham in 1993.
What drugs does Dr. Robert Hannahan prescribe most?
In 2024 Medicare Part D data, Dr. Hannahan's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Gabapentin and Ibuprofen.
Has Dr. Robert Hannahan received payments from drug or device companies?
CMS Open Payments shows $4,818 in general payments to Dr. Hannahan from 20 companies from 2017 to 2025. The largest total came from Nevro Corp.
How long has Dr. Robert Hannahan been practicing?
Dr. Hannahan graduated from medical school in 1993, 33 years ago.
What insurance does Dr. Robert Hannahan accept?
Dr. Hannahan is in network with 13 carriers, including Aetna, Excellus BlueCross BlueShield and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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