Kathryn Ferry Ziegler, MD
Internal Medicine Physician · Spring, TX
Kathryn Ferry Ziegler, MD is an internal medicine physician with a practice address in Spring, Texas, and NPI 1114111408, issued on Aug 30, 2007. Check the license (Texas M7791, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Kathryn Ferry Ziegler
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- M7791 TX
Self-reported in NPPES; status is on the state search - Practice location
- 2255 E Mossy Oaks RD, Spring, TX 77389
- Phone
- (281) 537-0300
- Enumerated
- Aug 30, 2007
- Record last updated
- Apr 3, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (281) 537-0315
- Medicare enrollment
- Enrolled (PECOS I20071113000684); accepts Medicare assignment
- Medical or professional school
- Baylor College Of Medicine, 2003
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 2255 E Mossy Oaks RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kathryn Ferry Ziegler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license M7791Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
44% more Medicare Part D claims than the average internal medicine physician in 2024
4,589 Medicare Part D claims for 430 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 40 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium346 claims
- Atorvastatin Calcium285 claims
- Amlodipine Besylate221 claims
- Levothyroxine Sodium219 claims
- Ezetimibe162 claims
- Losartan Potassium134 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: $1,322.88
49 payments; by number, the most common kind was food and beverage; the largest payer was Bayer Healthcare 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 one group practice
- Cypress Physicians AssociationHouston, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kathryn Ferry Ziegler among 9,175 internal medicine physician records in Texas
Kathryn Ferry Ziegler, MD 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 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 50% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2003 · median 2004 among the 6,088 with a school on file
- Record last updated2018 · 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).
36 internal medicine physician records list a practice address in Spring
They are 36 of the 3,758 NPPES records with a practice address in Spring, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Spring → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Samira Ahmed, MDSpring, TX 773891003183179
- Ayham Alsaab, DOSpring, TX 773891790434629
- Jessica Anderson, MDSpring, TX 773891881885069
- Nazia Ansari, M.D.Spring, TX 773891407823115
- Aisha Barlas, MDSpring, TX 773891730728379
- Xiaolei Chen, M.D.The Woodlands, TX 773891306259635
- Glenn Davis, MDSpring, TX 773891003806431
- Jesse Dunkle, MDSpring, TX 773891811384167
Common questions
What is Kathryn Ferry Ziegler, MD's NPI number?
Kathryn Ferry Ziegler, MD's National Provider Identifier (NPI) is 1114111408, issued on Aug 30, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Kathryn Ferry Ziegler, MD located?
The NPPES record lists a practice address at 2255 E Mossy Oaks RD, Spring, TX, 77389. Phone: (281) 537-0300. Providers update this record themselves, so call before visiting.
How can I verify Kathryn Ferry Ziegler, MD's license?
NPPES lists Texas license number M7791, 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 Kathryn Ferry Ziegler, MD prescribe under Medicare Part D?
In 2024, Kathryn Ferry Ziegler, MD had 4,589 Medicare Part D claims for 430 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.