Dr. Ana Isabel Stark, MD
- Medicare services, 2024
- 8,011
- Medicare patients, 2024
- 631
- Part D claims, 2024
- 3,555
- Hospital affiliations
- 5
- Industry payments
- $3,023
- Practice address
- 1400 Us-61, Festus, MO 63028
- Practice phone
- Call (636) 933-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mercy Hospital Jefferson
Festus, Missouri
Find Dr. Stark'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. Ana Isabel Stark is a nephrologist in Festus, Missouri
Dr. Stark practices at Mercy Hospital Jefferson in Festus, Missouri.
Dr. Stark's NPI, 1811188758, was assigned on August 6, 2007. Dr. Stark graduated from University of Kansas School of Med (KC/Wich/Sal) in 2017. Dr. Stark holds Kansas license 04-47770.
- NPI
- 1811188758NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7416133053
- NPI enumeration date
- August 6, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (636) 933-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ana Isabel Stark practices at Mercy Hospital Jefferson in Festus, Missouri
Dr. Stark's primary practice is Mercy Hospital Jefferson, at 1400 Us-61, Festus, MO 63028 in Jefferson County. The practice phone is (636) 933-1000.
- Mercy Hospital Jefferson1400 Us-61, Festus, MO 63028 · Jefferson CountyPhone(636) 933-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ana Isabel Stark is affiliated with 10 sites of care and 4 medical groups
Dr. Stark's primary practice is Mercy Hospital Jefferson in Festus, Missouri. Dr. Stark is also affiliated with Mercy Hospital Jefferson. The medical group on file is St. Louis Kidney Care. Dmand AI also links Dr. Stark to 4 more hospitals, 3 dialysis centers, 3 medical groups and 1 group practice or clinic, 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. Ana Isabel Stark's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stark practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Hospital Jefferson | Available with a free account |
| +9 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Ana Isabel Stark is one of 249 nephrologists in Missouri
Nephrology is Dr. Stark's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Stark is licensed in Kansas.
Specialties and state licenses
- Nephrology, KansasPrimary
Nephrologists near Dr. Stark
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. Ana Isabel Stark billed Medicare for 8,011 services in 2024
CMS data shows 8,011 Medicare services from Dr. Stark across 20 procedure codes in 2024, for 631 Medicare patients. Medicare paid $358,631 for them.
Dr. Stark's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2,1722024: 6,911218%
- Other services
- 2023: 02024: 580
- Tests and treatments
- 2023: 592024: 520781%
Where Dr. Stark's Medicare services took place, 2024
- In an office7,43593%
- In a facility5767%
Dr. Stark compared with the Missouri median for nephrologists, 2024
- Dr. Stark
- Missouri median
- Medicare services
- 8,011vs 8579.3 times
- Medicare patients
- 631vs 2712.3 times
- Part D claims
- 3,159vs 7794.1 times
Medians across 240 nephrologists in Missouri with Dmand AI profiles that report each measure.
Dr. Stark'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. Stark?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Stark and other nephrologists in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ana Isabel Stark treated 631 Medicare patients in 2024, average age 73
CMS counts 631 Medicare patients who saw Dr. Stark in 2024. The largest group is 65 to 74, with 229 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 16% are also on Medicaid. Their average risk score is 3.10, 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. Stark's median patient age at 73, with 61% women.
Dr. Stark's Medicare patients by age, 2024
Dr. Stark's Medicare patients by sex, 2024
- Women37159%
- Men26041%
Chronic conditions among Dr. Stark's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes58%
- Ischemic heart disease49%
- Arthritis48%
- Heart failure39%
- Mood disorders38%
Share of Medicare patients with each condition. A patient can have several.
Dr. Stark's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women61%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ana Isabel Stark wrote 3,555 Medicare Part D claims in 2024
In 2024, Dr. Stark wrote 3,555 Medicare Part D claims for 510 patients. 90% of them were for generic drugs. CMS names the drug for 3,159 of them, across 58 drugs with 11 or more claims each, at $327,513 in total drug cost. In 2023, CMS named 295 claims across 14 drugs.
Dr. Stark's Part D claims by kind of drug, 2024
- Generic3,193 claims90%
- Brand-name and other362 claims10%
Dr. Stark'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. Stark's Part D claims, 2024
- Opioids1%41 of 3,555 claims
- Antibiotics4%139 of 3,555 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: 2952024: 3,159971%
Drugs named by CMS: 58 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
How Dr. Ana Isabel Stark takes part in Medicare
Dr. Stark 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Ana Isabel Stark received $3,023 in industry payments from 2022 to 2025
CMS Open Payments shows 130 general payments to Dr. Stark from 23 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 99% of the total. Abbvie Inc. paid the most, $469.
General payments to Dr. Stark by program year, 2022 to 2025
General payments to Dr. Stark by kind, 2022 to 2025
- Food and beverage$3,00099%
- Education$231%
Companies that paid Dr. Stark the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ana Isabel Stark graduated from University of Kansas School of Med (KC/Wich/Sal)
Dr. Stark graduated from University of Kansas School of Med (KC/Wich/Sal) in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ana Isabel Stark'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 |
| 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. Ana Isabel Stark
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. Ana Isabel Stark's NPI number?
Dr. Ana Isabel Stark's NPI number is 1811188758. It was assigned on August 6, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Ana Isabel Stark?
Dr. Ana Isabel Stark is a nephrologist in Festus, Missouri. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Ana Isabel Stark practice?
Dr. Stark practices at 1400 Us-61, Festus, MO 63028. Dr. Stark's primary practice is Mercy Hospital Jefferson in Festus, Missouri. Dmand AI also links Dr. Stark to 4 hospitals, 3 dialysis centers, 3 medical groups and 1 group practice or clinic.
What is Dr. Ana Isabel Stark's office phone number?
The practice phone on file for Dr. Stark is (636) 933-1000.
What is Dr. Ana Isabel Stark's medical license number?
Dr. Stark holds Kansas license 04-47770.
Which hospitals is Dr. Ana Isabel Stark affiliated with?
Dr. Stark is affiliated with Mercy Hospital Jefferson. Dmand AI links Dr. Stark to 4 more hospitals.
What medical group is Dr. Ana Isabel Stark part of?
Dr. Stark is linked to St. Louis Kidney Care. Dmand AI links Dr. Stark to 3 more medical groups.
Does Dr. Ana Isabel Stark accept Medicare?
Yes. CMS data shows Dr. Stark billed Medicare for 8,011 services in 2024, and Dr. Stark accepts Medicare assignment.
How many Medicare patients does Dr. Ana Isabel Stark see?
CMS counts 631 Medicare patients who saw Dr. Stark in 2024, with an average age of 73.
What services does Dr. Ana Isabel Stark bill to Medicare?
In 2024, Dr. Stark's most billed Medicare services were care management and other visits (99458), care management and other visits (99457) and care management and other visits (99454).
Show 4 more questionsShow fewer questions
Where did Dr. Ana Isabel Stark go to medical school?
Dr. Stark graduated from University of Kansas School of Med (KC/Wich/Sal) in 2017.
What drugs does Dr. Ana Isabel Stark prescribe most?
In 2024 Medicare Part D data, Dr. Stark's most prescribed drugs by claims were Allopurinol, Terazosin HCl and Lisinopril.
Has Dr. Ana Isabel Stark received payments from drug or device companies?
CMS Open Payments shows $3,023 in general payments to Dr. Stark from 23 companies from 2022 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Ana Isabel Stark been practicing?
Dr. Stark graduated from medical school in 2017, 9 years ago.
Selling to nephrology practices?
See nephrologists in Missouri by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card