Howard Louis Hartz, O.D.
Optometrist · Timonium, MD
Howard Louis Hartz, O.D. is an optometrist with a practice address in Timonium, Maryland, and NPI 1548200314, issued on Jun 8, 2006. Check the license (Maryland TAO989, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Howard Louis Hartz
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- TAO989 MD
Self-reported in NPPES; status is on the state search - Practice location
- 1952 York RD, Timonium, MD 21093
- Phone
- (410) 308-3162
- Enumerated
- Jun 8, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (410) 308-3190
- Entity
- Type 1 · individual
8 nearest optometrist records → All 924 in Maryland → Look up another NPI →
Verify Howard Louis Hartz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license TAO989Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $158.89
2 payments; by number, the most common kind was food and beverage; the largest payer was Sun Pharmaceutical Industries 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Howard Louis Hartz among 924 optometrist records in Maryland
Howard Louis Hartz, O.D. is one of 924 optometrist records with a practice address in Maryland. 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 7% of them.
- NPI issued2006 · 7% of these records are older, 56% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 56% of these records are
- Record last updated2026 · 63% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 optometrist records list a practice address in Timonium
They are 9 of the 612 NPPES records with a practice address in Timonium, and 924 optometrist records in Maryland.
All 924 in Maryland → Every provider in Timonium → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Irwin Azman, O.D.Timonium, MD 210931558437590
- Thomas Azman, O.D.Timonium, MD 210931235205378
- Benjamin Azman, O.D.Timonium, MD 210931699156083
- Gary Baziz, O.D.Lutherville, MD 210931104823459
- Francisco Burgos, O.D.Lutherville, MD 210931114924495
- Anthony Glasser, O.D.Timonium, MD 210931952490625
- Diane Golub, O.D.Lutherville, MD 210931841297116
- Robert Leikin, O.D.Timonium, MD 210931316051808
Common questions
What is Howard Louis Hartz, O.D.'s NPI number?
Howard Louis Hartz, O.D.'s National Provider Identifier (NPI) is 1548200314, issued on Jun 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Howard Louis Hartz, O.D. located?
The NPPES record lists a practice address at 1952 York RD, Timonium, MD, 21093. Phone: (410) 308-3162. Providers update this record themselves, so call before visiting.
How can I verify Howard Louis Hartz, O.D.'s license?
NPPES lists Maryland license number TAO989, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity 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.