DR. MARK G BLASBALG (O.D.) – Optometrist, NPI 1366554420

DR. MARK G BLASBALG (O.D.) is a healthcare provider. based in Coventry, Rhode Island. specializing in Optometrist. They hold the professional credentials O.D.. They hold a License No. ODTG00489 (RI). The NPI Number for DR. MARK G BLASBALG (O.D.) is 1366554420

Main info

Male
Sole Proprietor
47 Years Of Experience
Accepts Medicare Assignment
Name
DR. MARK G BLASBALG (O.D.)
NPI
1366554420
Phone
(401) 823-8200
Address
1193 TIOGUE AVE
Enumeration Date
31 August 2006
Last Update Date
9 July 2007

Doctor Profile

Medical School Name
PENNSYLVANIA COLLEGE OF OPTOMETRY
Secondary Phone
4018238200
Graduation Year
1979 (47 years ago)
PAC ID
8224133210
Group Practice PAC ID
5294090510
Professional Enrollment ID
I20070518000511
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience61
Completeness75
Years active:19State licenses:2Digital endpointsOther names

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Provider Addresses for DR. MARK G BLASBALG (O.D.)

  • 1193, Tiogue Avenue, Spring Lake, Coventry, Kent County, Rhode Island, 02816, United States

    COVENTRY, RI 028166122

    Phone: (401) 823-8200

    Fax: (401) 826-8708

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 1 Open Payments records for all available years, with a total value of $45.

Total Amount is formed as General ($45) + Research ($0) + Ownership ($0) = $45.

Last reported payment date: 2023-09-09 • Largest payer in this snapshot: GENZYME CORPORATION ($45).

Total Amount

$45

General + Research + Ownership

Payments

1

Total payment records

General Amount

$45

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2023-09-09

Latest reported date

Top Companies

Largest payers in this snapshot

CompanyAmount
GENZYME CORPORATION$45
View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2007-05-18

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20070518000511IOptometryRITBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 02816)

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Provider's Procedures

DR. MARK G BLASBALG (O.D.) performs procedures in Optometrist. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
OPTOMETRYRI92012Eye and medical examination for diagnosis and treatment, established patient171117
OPTOMETRYRI92083Measurement of field of vision during daylight conditions4942
OPTOMETRYRI92134Diagnostic imaging of retina4841

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 5294090510View full group profile
NameSpecialtyState
O P T O M E T R YRI
O P T O M E T R YRI
O P T O M E T R YRI

Reviews

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Frequently asked questions

How do payers reference DR. MARK G BLASBALG (O.D.)?
For DR. MARK G BLASBALG (O.D.), use NPI 1366554420 as the unique 10-digit identifier.
Is DR. MARK G BLASBALG (O.D.) shown as active in public data?
Registry records indicate DR. MARK G BLASBALG (O.D.) maintains an active NPI.
What expertise is attributed to DR. MARK G BLASBALG (O.D.)?
DR. MARK G BLASBALG (O.D.)'s specialty line reads Optometrist. Clinical services aligned with this taxonomy classification.
Where in Rhode Island is DR. MARK G BLASBALG (O.D.) registered?
Use Coventry, Rhode Island as the headline location for DR. MARK G BLASBALG (O.D.) here.
Can I trust this NPI listing for DR. MARK G BLASBALG (O.D.)?
The listing is sourced from the national NPI registry. If something looks off, compare with NPPES and the clinic's website.