NPPES file of Aug 9, 2026

Blas Tiongson Mamaril, O.D.

Optometrist · Rochester, MI

Blas Tiongson Mamaril, O.D. is an optometrist with a practice address in Rochester, Michigan, and NPI 1467489351, issued on Jun 27, 2006. Check the license (Michigan 4901003164, as entered in NPPES) with the Michigan 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1467489351
Name
Blas Tiongson Mamaril
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
4901003164 MI
Self-reported in NPPES; status is on the state search
Practice location
432 W. University Dr., Rochester, MI 48307
Phone
(248) 651-6122
Enumerated
Jun 27, 2006
Record last updated
Aug 21, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20060214000079); accepts Medicare assignment
Medical or professional school
Illinois College Of Optometry At Chicago, 1987
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 432 W. University Dr.

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

  1. Bryan Johnson, O.D.Optometrist1922036813
  2. Efthemios Raphtis, M.D.Ophthalmology Physician1356379259

Verify Blas Tiongson Mamaril in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Michigan board licenses this profession
    Search for license 4901003164
    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
Find the Michigan license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2.4 times the Medicare Part D claims of the average optometrist in 2024

667 Medicare Part D claims for 199 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.

  1. Blas Mamaril667
  2. Specialty average277

Most prescribed

  1. Latanoprost298 claims
  2. Timolol Maleate151 claims
  3. Tobramycin-Dexamethasone35 claims
  4. Lumigan23 claims
  5. Brimonidine Tartrate21 claims
  6. Prednisolone Acetate20 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 91.4 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score96.4
  2. Costout of 100 · 30%75.0
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $191.95

10 payments; by number, the most common kind was food and beverage; the largest payer was Sight Sciences, Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Blas Mamaril$191.95
  2. Specialty average$769.99

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

  1. Mei Operations, PLLCRochester, MI

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

Blas Tiongson Mamaril among 1,963 optometrist records in Michigan

Blas Tiongson Mamaril, O.D. is one of 1,963 optometrist records with a practice address in Michigan. 69% 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 11% of them.

  • NPI issued2006 · 11% of these records are older, 58% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated1987 · median 2009 among the 1,121 with a school on file
  • Record last updated2007 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in Michigan

There are 1,963 optometrist records in Michigan.

The 8 optometrist records with the nearest ZIP codes

  1. Robert Clark, O.D.Rochester Hills, MI 483071205904497
  2. Michael Duerr, O.D.Rochester Hills, MI 483071043228281
  3. Kyle Fairless, O.D.Rochester Hills, MI 483071912062654
  4. Jun Fu, O,D,Rochester Hills, MI 483071558428615
  5. Shelia Fuller, O.D.Rochester Hills, MI 483071134124555
  6. Lorne Gottesman, O.D.Rochester, MI 483071811975402
  7. Lorissa Hemmer, O.D.Rochester Hills, MI 483071962453373
  8. Bryan Johnson, O.D.Rochester, MI 483071922036813

Common questions

What is Blas Tiongson Mamaril, O.D.'s NPI number?

Blas Tiongson Mamaril, O.D.'s National Provider Identifier (NPI) is 1467489351, issued on Jun 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Blas Tiongson Mamaril, O.D. located?

The NPPES record lists a practice address at 432 W. University Dr., Rochester, MI, 48307. Phone: (248) 651-6122. Providers update this record themselves, so call before visiting.

How can I verify Blas Tiongson Mamaril, O.D.'s license?

NPPES lists Michigan license number 4901003164, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.

How much does Blas Tiongson Mamaril, O.D. prescribe under Medicare Part D?

In 2024, Blas Tiongson Mamaril, O.D. had 667 Medicare Part D claims for 199 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.

What is Blas Tiongson Mamaril, O.D.'s MIPS final score?

The 2023 MIPS final score is 91.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.