NPPES file of Aug 9, 2026

Diane Susan Demick, MD

Nephrology Physician · El Paso, TX

Diane Susan Demick, MD is a nephrology physician with a practice address in El Paso, Texas, and NPI 1770553281, issued on Jan 25, 2006. Check the license (Texas L2220, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1770553281
Name
Diane Susan Demick
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
L2220 TX
Self-reported in NPPES; status is on the state search
Practice location
125 W Hague RD, El Paso, TX 79902
Phone
(915) 544-7767
Enumerated
Jan 25, 2006
Record last updated
Aug 23, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(915) 532-6938
Medicare enrollment
Enrolled (PECOS I20050221000167); accepts Medicare assignment
Medical or professional school
Texas Tech University Health Science Center School Of Medicine, 1995
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 125 W Hague RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Patricia Alcala, M.D.Obstetrics & Gynecology Physician1952309643
  2. Dionicio AlvarezNephrology Physician1275504490
  3. Arianna Bender, M.D,Internal Medicine Physician1609942598
  4. Enrique Beniquez Nieves, MDGastroenterology Physician1710955182
  5. Marco Bustamante Bernal, MDGastroenterology Physician1841602117
  6. Steven Feinstein, M.D.Maternal & Fetal Medicine Physician1942253174

Verify Diane Susan Demick in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license L2220
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

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17% more Medicare Part D claims than the average nephrology physician in 2024

1,708 Medicare Part D claims for 334 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.

  1. Diane Demick1,708
  2. Specialty average1,465

Most prescribed

  1. Farxiga132 claims
  2. Losartan Potassium132 claims
  3. Furosemide89 claims
  4. Kerendia76 claims
  5. Lisinopril71 claims
  6. Sevelamer Carbonate67 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: $3,093.96

97 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Diane Demick$3,093.96
  2. Specialty average$3,091.37

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 3 group practices

  1. EL Paso Physical Therapy Specialists LLCEl Paso, TX
  2. EL Paso Therapy Services, Inc.El Paso, TX
  3. Kidney Consultants OF EL PasoEl Paso, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Diane Susan Demick among 1,159 nephrology physician records in Texas

Diane Susan Demick, MD is one of 1,159 nephrology physician records with a practice address in Texas. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.

  • NPI issued2006 · 15% of these records are older, 53% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 82% of these records are
  • Graduated1995 · median 2001 among the 954 with a school on file
  • Record last updated2007 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in Texas

There are 1,159 nephrology physician records in Texas.

The 8 nephrology physician records with the nearest ZIP codes

  1. Dionicio AlvarezEl Paso, TX 799021275504490
  2. Alfonso Chavez, MDEl Paso, TX 799021356326987
  3. Melvin Fox, M.D.El Paso, TX 799021700884624
  4. Alfredo Gonzalez, MDEl Paso, TX 799021992776116
  5. Ramesh Komaragiri, M.D.El Paso, TX 799021265534010
  6. Ileana Martinez, M.D.El Paso, TX 799021326032913
  7. Fernando Moran, M.DEl Paso, TX 799021619321924
  8. Patricio Pazmino, PHD, MDEl Paso, TX 799021336131325

Common questions

What is Diane Susan Demick, MD's NPI number?

Diane Susan Demick, MD's National Provider Identifier (NPI) is 1770553281, issued on Jan 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Diane Susan Demick, MD located?

The NPPES record lists a practice address at 125 W Hague RD, El Paso, TX, 79902. Phone: (915) 544-7767. Providers update this record themselves, so call before visiting.

How can I verify Diane Susan Demick, MD's license?

NPPES lists Texas license number L2220, 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 Diane Susan Demick, MD prescribe under Medicare Part D?

In 2024, Diane Susan Demick, MD had 1,708 Medicare Part D claims for 334 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.