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Clostridioides difficileClostridium InfectionsCross Infection
Dr. John A. Jernigan, MD
NPI1881635480PAC ID8921070400
- Medicare services, 2024
- 29,624
- Medicare patients, 2024
- 205
- Part D claims, 2024
- 16,084
- Publications
- 117
- Hospital affiliations
- 2
- Practice address
- 1301 Mulberry St, Montgomery, AL 36106
- Practice phone
- Call (334) 265-6153
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mulberry Medical Associates, P.C
Montgomery, Alabama
Find Dr. Jernigan'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. John A. Jernigan is an internist in Montgomery, Alabama
Dr. Jernigan practices at Mulberry Medical Associates, P.C in Montgomery, Alabama.
Dr. Jernigan's NPI, 1881635480, was assigned on June 8, 2006. Dr. Jernigan graduated from University of Florida College of Medicine in 1979. Dr. Jernigan holds Alabama license 00009475.
NPI and contact details
- NPI
- 1881635480NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8921070400
- NPI enumeration date
- June 8, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (334) 265-6153
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John A. Jernigan practices at Mulberry Medical Associates, P.C in Montgomery, Alabama
Dr. Jernigan's primary practice is Mulberry Medical Associates, P.C, at 1301 Mulberry St, Montgomery, AL 36106 in Montgomery County. The practice phone is (334) 265-6153.
- Mulberry Medical Associates, P.C1301 Mulberry St, Montgomery, AL 36106 · Montgomery CountyPhone(334) 265-6153
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John A. Jernigan is affiliated with 7 sites of care and 2 medical groups
Dr. Jernigan's primary practice is Mulberry Medical Associates, P.C in Montgomery, Alabama. Dr. Jernigan is also affiliated with Baptist Medical Center South. The medical group on file is Jackson Hospital. Dmand AI also links Dr. Jernigan to 1 more hospital, 2 group practices and clinics, 1 home health agency, 1 hospice and 1 medical group, each named with a free account.
Mulberry Medical Associates, P.CPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John A. Jernigan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Jernigan practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mulberry Medical Associates, P.C | Available with a free account |
| +6 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John A. Jernigan is one of 1,685 internists in Alabama
Internal medicine is Dr. Jernigan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Jernigan is licensed in Alabama.
Specialties and state licenses
- Internal medicine, AlabamaPrimary
Internists near Dr. Jernigan
Counts of internists 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 A. Jernigan billed Medicare for 29,624 services in 2024
CMS data shows 29,624 Medicare services from Dr. Jernigan across 67 procedure codes in 2024, for 205 Medicare patients. Medicare paid $218,558 for them.
Medicare services, 202429,624
Medicare patients205
Paid by Medicare$218,558
Procedure codes67
Dr. Jernigan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 29,9612024: 22,45825%
- Lab and pathology
- 2023: 3,8252024: 3,7572%
- Office and hospital visits
- 2023: 1,5682024: 1,5811%
- Tests and treatments
- 2023: 8852024: 8405%
- Surgery
- 2023: 5682024: 5572%
- Other services
- 2023: 2612024: 2766%
- Imaging
- 2023: 1502024: 1553%
Where Dr. Jernigan's Medicare services took place, 2024
- In an office29,30099%
- In a facility3241%
Dr. Jernigan compared with the Alabama median for internists, 2024
- Dr. Jernigan
- Alabama median
- Medicare services
- 29,624vs 66444.6 times
- Medicare patients
- 205vs 203Close to median
- Part D claims
- 15,147vs 50030.3 times
Medians across 1,610 internists in Alabama with Dmand AI profiles that report each measure.
Dr. Jernigan'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. Jernigan and other internists in Alabama.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John A. Jernigan treated 205 Medicare patients in 2024, average age 76
CMS counts 205 Medicare patients who saw Dr. Jernigan in 2024. The largest group is 65 to 74, with 81 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 11% are also on Medicaid. Their average risk score is 1.27, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Jernigan's median patient age at 74, with 60% women.
Medicare patients, 2024205
Average age76
Average risk score1.27
Also on Medicaid11%
Dr. Jernigan's Medicare patients by age, 2024
Dr. Jernigan's Medicare patients by sex, 2024
- Women12260%
- Men8340%
Chronic conditions among Dr. Jernigan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis63%
- Diabetes52%
- Chronic kidney disease30%
- Ischemic heart disease29%
- Asthma22%
- Heart failure21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Jernigan'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
- Women60%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John A. Jernigan wrote 16,084 Medicare Part D claims in 2024
In 2024, Dr. Jernigan wrote 16,084 Medicare Part D claims for 768 patients. 84% of them were for generic drugs. CMS names the drug for 15,147 of them, across 202 drugs with 11 or more claims each, at $1,824,822 in total drug cost. In 2023, CMS named 14,050 claims across 199 drugs.
Part D claims, 202416,084
Drugs named by CMS202
Total drug cost$1.8M
Part D patients768
Dr. Jernigan's Part D claims by kind of drug, 2024
- Generic13,521 claims84%
- Brand-name2,518 claims16%
- Other45 claims0%
Dr. Jernigan'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. Jernigan's Part D claims, 2024
- Opioids2%268 of 16,084 claims
- Antibiotics3%487 of 16,084 claims
- Antipsychotics, patients 65 and over0%80 of 16,084 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: 14,0502024: 15,1478%
Drugs named by CMS: 202 in 2024, 199 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. John A. Jernigan takes part in Medicare
Dr. Jernigan 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. John A. Jernigan has 117 publications on record
Dmand AI links 117 papers to Dr. Jernigan, published from 2010 to 2025. 2020 was the busiest year, with 11. The most frequent topics are Cross Infection, COVID-19 and SARS-CoV-2. Dr. Jernigan has published most often in MMWR Morb Mortal Wkly Rep. Dr. Jernigan's most frequent co-authors are Sujan Chollati Reddy, MD, Robert Alan Weinstein, MD and Edward J. Septimus, MD.
Papers117
Years published2010 to 2025
Dr. Jernigan's papers by year, 2016 to 2025
Topics Dr. Jernigan writes about most
- Cross Infection
- COVID-19
- SARS-CoV-2
- Anti-Bacterial Agents
- Disease Outbreaks
- Infection Control
- Nursing Homes
- Methicillin-Resistant Staphylococcus aureus
Dr. Jernigan's most frequent co-authors
- Sujan Chollati Reddy, MD37 shared papers
- Robert Alan Weinstein, MD12 shared papers
- Edward J. Septimus, MD11 shared papers
Recent publications by Dr. Jernigan
Anti-Bacterial AgentsBacterial InfectionsCross Infection
JAMA Netw Open
MedicareNursing HomesUrinary Tract Infections
Infect Control Hosp Epidemiol
COVID-19Cross InfectionInfection Control
COVID-19COVID-19 VaccinesNursing Homes
See who Dr. Jernigan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Jernigan works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John A. Jernigan received $60,274 in industry payments from 2016 to 2025
CMS Open Payments shows 1,788 general payments to Dr. Jernigan from 66 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 60% of the total. Novartis Pharmaceuticals Corporation paid the most, $21,102.
General payments to Dr. Jernigan by program year, 2016 to 2025
General payments to Dr. Jernigan by kind, 2016 to 2025
$60.3Kin total
- Food and beverage$36,37360%
- Speaker and faculty fees$16,08127%
- Consulting fees$4,4707%
- Travel and lodging$3,1345%
- Other$2160%
Companies that paid Dr. Jernigan the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John A. Jernigan graduated from University of Florida College of Medicine
Dr. Jernigan graduated from University of Florida College of Medicine in 1979.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John A. Jernigan'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 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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 A. Jernigan
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 A. Jernigan's NPI number?
Dr. John A. Jernigan's NPI number is 1881635480. It was assigned on June 8, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John A. Jernigan?
Dr. John A. Jernigan is an internist in Montgomery, Alabama. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. John A. Jernigan practice?
Dr. Jernigan practices at 1301 Mulberry St, Montgomery, AL 36106. Dr. Jernigan's primary practice is Mulberry Medical Associates, P.C in Montgomery, Alabama. Dmand AI also links Dr. Jernigan to 1 hospital, 2 group practices and clinics, 1 home health agency, 1 hospice and 1 medical group.
What is Dr. John A. Jernigan's office phone number?
The practice phone on file for Dr. Jernigan is (334) 265-6153.
What is Dr. John A. Jernigan's medical license number?
Dr. Jernigan holds Alabama license 00009475.
Which hospitals is Dr. John A. Jernigan affiliated with?
Dr. Jernigan is affiliated with Baptist Medical Center South. Dmand AI links Dr. Jernigan to 1 more hospital.
What medical group is Dr. John A. Jernigan part of?
Dr. Jernigan is linked to Jackson Hospital. Dmand AI links Dr. Jernigan to 1 more medical group.
Does Dr. John A. Jernigan accept Medicare?
Yes. CMS data shows Dr. Jernigan billed Medicare for 29,624 services in 2024, and Dr. Jernigan accepts Medicare assignment.
How many Medicare patients does Dr. John A. Jernigan see?
CMS counts 205 Medicare patients who saw Dr. Jernigan in 2024, with an average age of 76.
What services does Dr. John A. Jernigan bill to Medicare?
In 2024, Dr. Jernigan's most billed Medicare services were injected or infused drug (J1071), lab and pathology test (85025) and surgery: heart and blood vessels (36415).
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Where did Dr. John A. Jernigan go to medical school?
Dr. Jernigan graduated from University of Florida College of Medicine in 1979.
What drugs does Dr. John A. Jernigan prescribe most?
In 2024 Medicare Part D data, Dr. Jernigan's most prescribed drugs by claims were Amlodipine Besylate, Atorvastatin Calcium and Potassium Chloride.
Has Dr. John A. Jernigan received payments from drug or device companies?
CMS Open Payments shows $60,274 in general payments to Dr. Jernigan from 66 companies from 2016 to 2025. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Dr. John A. Jernigan been practicing?
Dr. Jernigan graduated from medical school in 1979, 47 years ago.
Does Dr. John A. Jernigan do research?
Dmand AI links 117 publications to Dr. Jernigan, published from 2010 to 2025.
Who does Dr. John A. Jernigan publish with?
Dr. Jernigan's most frequent co-authors are Sujan Chollati Reddy, MD (37 shared papers), Robert Alan Weinstein, MD (12 shared papers) and Edward J. Septimus, MD (11 shared papers).
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