NPPES file of Aug 9, 2026

Robert Samuel Markoff, D.D.S.

General Practice Dentistry · Sugar Land, TX

Robert Samuel Markoff, D.D.S. is a general practice dentistry with a practice address in Sugar Land, Texas, and NPI 1477638799, issued on Oct 26, 2006. Check the license (Texas 15927, as entered in NPPES) with the Texas board that licenses this profession; 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
1477638799
Name
Robert Samuel Markoff
Credential
D.D.S.
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
15927 TX
Self-reported in NPPES; status is on the state search
Practice location
13839 Southwest Fwy, Sugar Land, TX 77478
Phone
(281) 242-5959
Enumerated
Oct 26, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(281) 242-4419
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Robert Samuel Markoff in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Texas board licenses this profession
    Search for license 15927
    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
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82% more Medicare Part D claims than the average general practice dentistry in 2024

151 Medicare Part D claims for 94 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Robert Markoff151
  2. Specialty average83

Most prescribed

  1. Amoxicillin69 claims
  2. Chlorhexidine Gluconate61 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: $269.01

9 payments; by number, the most common kind was food and beverage; the largest payer was Dentsply Sirona Inc. The 41,669 providers of this specialty with any payment received $597.01 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Robert Markoff$269.01
  2. Specialty average$597.01

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

Robert Samuel Markoff among 10,056 general practice dentistry records in Texas

Robert Samuel Markoff, D.D.S. is one of 10,056 general practice dentistry records with a practice address in Texas. 64% 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 3% of them.

  • NPI issued2006 · 3% of these records are older, 73% newer
  • In a Medicare fileYes · 64% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2007 · 71% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

102 general practice dentistry records list a practice address in Sugar Land

They are 102 of the 3,851 NPPES records with a practice address in Sugar Land, and 10,056 general practice dentistry records in Texas.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Margaret Allen, DDSSugar Land, TX 774781326130428
  2. Larry Boecker, DDSSugar Land, TX 774781386645802
  3. Timothy Bradbury, D.D.S.Sugar Land, TX 774781932119476
  4. Amber Callis, DDSSugar Land, TX 774781720166093
  5. Teresa Cody, D.D.S.Sugar Land, TX 774781447269097
  6. Gregory Gor, DDSSugar Land, TX 774781366447575
  7. An Hoang, D.D.S.Sugar Land, TX 774781982645123
  8. Michael Kesner, DDSSugar Land, TX 774781881615169

Common questions

What is Robert Samuel Markoff, D.D.S.'s NPI number?

Robert Samuel Markoff, D.D.S.'s National Provider Identifier (NPI) is 1477638799, issued on Oct 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robert Samuel Markoff, D.D.S. located?

The NPPES record lists a practice address at 13839 Southwest Fwy, Sugar Land, TX, 77478. Phone: (281) 242-5959. Providers update this record themselves, so call before visiting.

How can I verify Robert Samuel Markoff, D.D.S.'s license?

NPPES lists Texas license number 15927, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.

How much does Robert Samuel Markoff, D.D.S. prescribe under Medicare Part D?

In 2024, Robert Samuel Markoff, D.D.S. had 151 Medicare Part D claims for 94 beneficiaries; the average among general practice dentistry prescribers was 83. 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.