Geoffrey Flynn McCrossan, M.D.
Internal Medicine Physician · Dallas, TX
Geoffrey Flynn McCrossan, M.D. is an internal medicine physician with a practice address in Dallas, Texas, and NPI 1316488695, issued on Mar 20, 2017. Check the license (Texas S9936, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Geoffrey Flynn McCrossan
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- S9936 TX
ME177488 FL
Self-reported in NPPES; status is on the state search - Practice location
- 5323 Harry Hines Blvd, Dallas, TX 75390
- Phone
- (214) 590-8000
- Enumerated
- Mar 20, 2017
- Record last updated
- Apr 15, 2026
- Medicare enrollment
- Enrolled (PECOS I20210413000960); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 5323 Harry Hines Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Geoffrey Flynn McCrossan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license S9936Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.5 times the Medicare Part D claims of the average internal medicine physician in 2024
11,152 Medicare Part D claims for 900 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 1,269 claims were for opioids.
Most prescribed
- Atorvastatin Calcium634 claims
- Hydrocodone-Acetaminophen447 claims
- Gabapentin369 claims
- Levothyroxine Sodium353 claims
- Eliquis299 claims
- Amlodipine Besylate273 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $76.92
2 payments; by number, the most common kind was food and beverage; the largest payer was Acadia Pharmaceuticals Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Austin Geriatric Specialists PLLCAustin, TX
- Millennium Physician Group LLCPort Charlotte, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Geoffrey Flynn McCrossan among 9,175 internal medicine physician records in Texas
Geoffrey Flynn McCrossan, M.D. is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 77% of them.
- NPI issued2017 · 77% of these records are older, 21% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2017 · median 2004 among the 6,088 with a school on file
- Record last updated2026 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
956 internal medicine physician records list a practice address in Dallas
They are 956 of the 36,304 NPPES records with a practice address in Dallas, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Dallas → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- David Balis, MDDallas, TX 753901689633927
- Arlene Betancourt, M.D.Dallas, TX 753901386678712
- Cecilier Chen, MDDallas, TX 753901053348847
- Roberto De La Cruz, M.D.Dallas, TX 753901457381741
- Ethan Halm, MDDallas, TX 753901437177128
- Shelly Heidelbaugh, MDDallas, TX 753901972545747
- Imran Khawaja, MDDallas, TX 753901679545164
- Nikhil Munshi, MD, PHDDallas, TX 753901457370249
Common questions
What is Geoffrey Flynn McCrossan, M.D.'s NPI number?
Geoffrey Flynn McCrossan, M.D.'s National Provider Identifier (NPI) is 1316488695, issued on Mar 20, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Geoffrey Flynn McCrossan, M.D. located?
The NPPES record lists a practice address at 5323 Harry Hines Blvd, Dallas, TX, 75390. Phone: (214) 590-8000. Providers update this record themselves, so call before visiting.
How can I verify Geoffrey Flynn McCrossan, M.D.'s license?
NPPES lists Texas license number S9936, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Geoffrey Flynn McCrossan, M.D. prescribe under Medicare Part D?
In 2024, Geoffrey Flynn McCrossan, M.D. had 11,152 Medicare Part D claims for 900 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.