Dr. Daniel N. Castresana, MD

  • Augusta, GA
  • Gastroenterologist
NPI1770873465PAC ID7012133879
Medicare services, 2024
341
Medicare patients, 2024
272
Part D claims, 2024
164
Publications
11
MIPS score, 2024
98
Practice address
1120 15th Street, Augusta, GA 30912
Practice phone
Call (706) 721-6569
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Wellstar MCG Health Medical Center

Hospital · Augusta, Georgia

See all 4 affiliations

Find Dr. Castresana'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.

View contacts for free

Dr. Daniel N. Castresana is a gastroenterologist in Augusta, Georgia

Dr. Castresana practices at Wellstar MCG Health Medical Center in Augusta, Georgia, part of Wellstar Health System.

Dr. Castresana's NPI, 1770873465, was assigned on April 14, 2011. Dr. Castresana graduated from Medical College of Georgia School of Medicine in 2011. Dr. Castresana holds Georgia license 85883.

NPI and contact details
Medicare PAC ID
7012133879
NPI enumeration date
April 14, 2011
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(706) 721-6569
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
41
Medical school graduation
2011

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Daniel N. Castresana practices at Wellstar MCG Health Medical Center in Augusta, Georgia

Dr. Castresana's primary practice is Wellstar MCG Health Medical Center, at 1120 15th Street, Augusta, GA 30912 in Richmond County. The practice phone is (706) 721-6569.

Source: Dmand AI Affiliation Data

Dr. Daniel N. Castresana is affiliated with 1 site of care and 3 medical groups

Dr. Castresana's primary practice is Wellstar MCG Health Medical Center in Augusta, Georgia, part of Wellstar Health System. The medical group on file is Wellstar Medical Group. Dmand AI also links Dr. Castresana to 2 more medical groups, each named with a free account.

See all 4 affiliations for Dr. Castresana

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Daniel N. Castresana's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Castresana practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Wellstar MCG Health Medical CenterAvailable with a free account
+2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every hospital where Dr. Castresana practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across Wellstar Health System and 6.2K+ hospitals, with verified contacts in the same login.

Dr. Daniel N. Castresana is one of 503 gastroenterologists in Georgia

Gastroenterology is Dr. Castresana's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dmand AI has Dr. Castresana's licenses on file in 4 states: Georgia, Colorado, New Mexico and Oregon.

Specialties and state licenses

  • Gastroenterology, GeorgiaPrimaryLicense 85883 · taxonomy 207RG0100X
  • Colorado licenseLicense DR.0070810
  • New Mexico licenseLicense MD2015-0914
  • Oregon licenseLicense MD194315

Gastroenterologists near Dr. Castresana

Counts of gastroenterologists 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. Daniel N. Castresana billed Medicare for 341 services in 2024

CMS data shows 341 Medicare services from Dr. Castresana across 14 procedure codes in 2024, for 272 Medicare patients. Medicare paid $47,217 for them.

Medicare services, 2024341
Medicare patients272
Paid by Medicare$47,217
Procedure codes14

Dr. Castresana's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Surgery
2023: 3312024: 28315%
Office and hospital visits
2023: 932024: 4057%
Other services
2023: 332024: 1845%
Imaging
2023: 422024: 0100%

Where Dr. Castresana's Medicare services took place, 2024

  • In an office206%
  • In a facility32194%

Dr. Castresana compared with the Georgia median for gastroenterologists, 2024

  • Dr. Castresana
  • Georgia median
Medicare services
341vs 49431% below
Medicare patients
272vs 2978% below
Part D claims
136vs 50373% below

Medians across 499 gastroenterologists in Georgia with Dmand AI profiles that report each measure.

Dr. Castresana'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.

See all procedures by Dr. Castresana

Need commercial claims for Dr. Castresana?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Castresana and other gastroenterologists in Georgia.

Book a meeting

Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Daniel N. Castresana treated 272 Medicare patients in 2024, average age 74

CMS counts 272 Medicare patients who saw Dr. Castresana in 2024. The largest group is 65 to 74, with 140 patients. 68% of them have high blood pressure, and 58% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.38, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Castresana's median patient age at 69, with 58% women.

Medicare patients, 2024272
Average age74
Average risk score1.38
Also on Medicaid12%

Dr. Castresana's Medicare patients by age, 2024

Dr. Castresana's Medicare patients by sex, 2024

  • Women15356%
  • Men11944%

Chronic conditions among Dr. Castresana's Medicare patients, 2024

  1. High blood pressure68%
  2. High cholesterol58%
  3. Arthritis44%
  4. Ischemic heart disease25%
  5. Chronic kidney disease24%
  6. Diabetes24%
  7. Anxiety21%
  8. Mood disorders21%

Share of Medicare patients with each condition. A patient can have several.

Dr. Castresana's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 69

Patient panel by sex, all payers

  • Women58%
  • Men41%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Daniel N. Castresana wrote 164 Medicare Part D claims in 2024

In 2024, Dr. Castresana wrote 164 Medicare Part D claims for 104 patients. 77% of them were for generic drugs. CMS names the drug for 136 of them, across 6 drugs with 11 or more claims each, at $45,604 in total drug cost. In 2023, CMS named 245 claims across 10 drugs.

Part D claims, 2024164
Drugs named by CMS6
Total drug cost$45,604
Part D patients104

Dr. Castresana's Part D claims by kind of drug, 2024

  • Generic127 claims77%
  • Brand-name37 claims23%

Dr. Castresana'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. Castresana's Part D claims, 2024

  • Antibiotics30%50 of 164 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: 2452024: 13644%

Drugs named by CMS: 6 in 2024, 10 in 2023.

See all prescribing by Dr. Castresana

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. Daniel N. Castresana 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. Castresana for performance year 2024, reported as part of a group. Dr. Castresana accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 219 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Castresana, more than 91% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Dr. Castresana's MIPS scores, performance year 2024

  • 98of 100Final score
  • 96.5of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Where Dr. Castresana ranks in Medicare procedure volume

Upper gastrointestinal (GI) endoscopy for acid reflux
91st percentile219 procedures
Colonoscopy
51st percentile26 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

For MedTech and pharma teams

Find gastroenterologists like Dr. Castresana by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

Dr. Daniel N. Castresana has 11 publications on record

Dmand AI links 11 papers to Dr. Castresana, published from 2014 to 2022. 2015 was the busiest year, with 4. The most frequent topics are Diagnosis, Differential, Gastrointestinal Neoplasms and Gastrointestinal Stromal Tumors. Dr. Castresana has published most often in Dig Dis Sci. Dr. Castresana's most frequent co-authors are Archana Kaza, MD, Gulshan Parasher, MD and Sameen Khalid, MD.

Papers11
Years published2014 to 2022

Dr. Castresana's papers by year, 2014 to 2022

Topics Dr. Castresana writes about most

  • Diagnosis, Differential
  • Gastrointestinal Neoplasms
  • Gastrointestinal Stromal Tumors
  • Liver Neoplasms
  • Tomography, X-Ray Computed

Dr. Castresana's most frequent co-authors

Recent publications by Dr. Castresana

See all 11 publications and co-authors

See who Dr. Castresana researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Castresana works with, so you can find a warm path to the right gastroenterologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Daniel N. Castresana received $7,918 in industry payments from 2016 to 2025

CMS Open Payments shows 214 general payments to Dr. Castresana from 30 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 62% of the total. Boston Scientific Corporation paid the most, $2,368.

General payments to Dr. Castresana by program year, 2016 to 2025

General payments to Dr. Castresana by kind, 2016 to 2025

$7.9Kin total
  • Food and beverage$4,87262%
  • Travel and lodging$3,04538%

Companies that paid Dr. Castresana the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Castresana

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Daniel N. Castresana graduated from Medical College of Georgia School of Medicine

Dr. Castresana graduated from Medical College of Georgia School of Medicine in 2011.

  1. Medical schoolMedical College of Georgia School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Daniel N. Castresana's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Daniel N. Castresana

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. Daniel N. Castresana's NPI number?

Dr. Daniel N. Castresana's NPI number is 1770873465. It was assigned on April 14, 2011, and it is active in the NPI Registry.

What kind of doctor is Dr. Daniel N. Castresana?

Dr. Daniel N. Castresana is a gastroenterologist in Augusta, Georgia. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Daniel N. Castresana practice?

Dr. Castresana practices at 1120 15th Street, Augusta, GA 30912. Dr. Castresana's primary practice is Wellstar MCG Health Medical Center in Augusta, Georgia, part of Wellstar Health System. Dmand AI also links Dr. Castresana to 2 medical groups.

What is Dr. Daniel N. Castresana's office phone number?

The practice phone on file for Dr. Castresana is (706) 721-6569.

What is Dr. Daniel N. Castresana's medical license number?

Dr. Castresana holds Georgia license 85883, one of the licenses on file in 4 states.

Which states has Dr. Daniel N. Castresana been licensed in?

Dmand AI has state licenses on file for Dr. Castresana in Georgia, Colorado, New Mexico and Oregon.

Which hospitals is Dr. Daniel N. Castresana affiliated with?

Dr. Castresana practices at Wellstar MCG Health Medical Center in Augusta, Georgia.

What medical group is Dr. Daniel N. Castresana part of?

Dr. Castresana is linked to Wellstar Medical Group. Dmand AI links Dr. Castresana to 2 more medical groups.

Does Dr. Daniel N. Castresana accept Medicare?

Yes. CMS data shows Dr. Castresana billed Medicare for 341 services in 2024, and Dr. Castresana accepts Medicare assignment.

What is Dr. Daniel N. Castresana's MIPS score?

Dr. Castresana's MIPS final score for performance year 2024 is 98 out of 100, reported as part of a group.

Show 8 more questionsShow fewer questions

How many Medicare patients does Dr. Daniel N. Castresana see?

CMS counts 272 Medicare patients who saw Dr. Castresana in 2024, with an average age of 74.

What services does Dr. Daniel N. Castresana bill to Medicare?

In 2024, Dr. Castresana's most billed Medicare services were surgery: digestive system (45385), surgery: digestive system (43239) and surgery: digestive system (43264).

Where did Dr. Daniel N. Castresana go to medical school?

Dr. Castresana graduated from Medical College of Georgia School of Medicine in 2011.

What drugs does Dr. Daniel N. Castresana prescribe most?

In 2024 Medicare Part D data, Dr. Castresana's most prescribed drugs by claims were Ciprofloxacin HCl, Omeprazole and Pantoprazole Sodium.

Has Dr. Daniel N. Castresana received payments from drug or device companies?

CMS Open Payments shows $7,918 in general payments to Dr. Castresana from 30 companies from 2016 to 2025. The largest total came from Boston Scientific Corporation.

How long has Dr. Daniel N. Castresana been practicing?

Dr. Castresana graduated from medical school in 2011, 15 years ago.

Does Dr. Daniel N. Castresana do research?

Dmand AI links 11 publications to Dr. Castresana, published from 2014 to 2022.

Who does Dr. Daniel N. Castresana publish with?

Dr. Castresana's most frequent co-authors are Archana Kaza, MD (4 shared papers), Gulshan Parasher, MD (3 shared papers) and Sameen Khalid, MD (2 shared papers).

Selling to gastroenterology practices?

See gastroenterologists in Georgia 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

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)