Diane G. Fries-Balog, O.D.
Optometrist · Pottstown, PA
Diane G. Fries-Balog, O.D. is an optometrist with a practice address in Pottstown, Pennsylvania, and NPI 1730103946, issued on Jul 27, 2006. Check the license (Pennsylvania OEG001588, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Diane G. Fries-Balog
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License numbers
- OEG001588 PA
27OA00519300 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 531 N Charlotte St, Pottstown, PA 19464
- Phone
- (610) 323-0450
- Enumerated
- Jul 27, 2006
- Record last updated
- Nov 10, 2025
- Fax
- (610) 323-6369
- Medicaid ID
- 0018193600003 PA
- Medicare enrollment
- Enrolled (PECOS I20060501000129); accepts Medicare assignment
- Medical or professional school
- Pennsylvania College Of Optometry, 1992
- Entity
- Type 1 · individual
8 nearest optometrist records → All 2,640 in Pennsylvania → Look up another NPI →
Also registered at 531 N Charlotte St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joel Fromer, DDSOrthodontics and Dentofacial Orthopedics Dentistry1679577944
Verify Diane G. Fries-Balog in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license OEG001588Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average optometrist in 2024
43 Medicare Part D claims for 16 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 42% of 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.
Diane G. Fries-Balog among 2,640 optometrist records in Pennsylvania
Diane G. Fries-Balog, O.D. is one of 2,640 optometrist records with a practice address in Pennsylvania. 72% 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 14% of them.
- NPI issued2006 · 14% of these records are older, 48% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1992 · median 2004 among the 1,588 with a school on file
- Record last updated2025 · 69% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Optometrist providers in Pennsylvania
There are 2,640 optometrist records in Pennsylvania.
All 2,640 in Pennsylvania → Every provider in Pottstown → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Marie Bisconti, O.D.Pottstown, PA 194641770922692
- Whitney Crosby, ODPottstown, PA 194641053834192
- Madison Crowe, ODSanatoga, PA 194641407562465
- Kimberly Huynh, ODPottstown, PA 194641710879796
- James Johnson, O.D.Pottstown, PA 194641467474510
- Hamdi Mahdi, ODPottstown, PA 194641932882784
- Sandra Ojeda, O.D.Pottstown, PA 194641588986517
- Joseph Ruskiewicz, ODPottstown, PA 194641396735668
Common questions
What is Diane G. Fries-Balog, O.D.'s NPI number?
Diane G. Fries-Balog, O.D.'s National Provider Identifier (NPI) is 1730103946, issued on Jul 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Diane G. Fries-Balog, O.D. located?
The NPPES record lists a practice address at 531 N Charlotte St, Pottstown, PA, 19464. Phone: (610) 323-0450. Providers update this record themselves, so call before visiting.
How can I verify Diane G. Fries-Balog, O.D.'s license?
NPPES lists Pennsylvania license number OEG001588, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
How much does Diane G. Fries-Balog, O.D. prescribe under Medicare Part D?
In 2024, Diane G. Fries-Balog, O.D. had 43 Medicare Part D claims for 16 beneficiaries; the average among optometrist prescribers was 277. 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.