Tammy Kay Hersch, O.D.
Optometrist · Spearfish, SD
Tammy Kay Hersch, O.D. is an optometrist with a practice address in Spearfish, South Dakota, and NPI 1609855980, issued on Jan 13, 2006. Check the license (South Dakota 508, as entered in NPPES) with the South Dakota board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tammy Kay Hersch
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 508 SD
Self-reported in NPPES; status is on the state search - Practice location
- 1420 North Ave, Spearfish, SD 57783
- Phone
- (605) 642-0390
- Enumerated
- Jan 13, 2006
- Record last updated
- Oct 22, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (605) 642-0388
- Medicaid ID
- 9202850 SD
- Medicare enrollment
- Enrolled (PECOS I20040602001408); may accept Medicare assignment
- Medical or professional school
- Pacific University - College Of Optometry, 1993
- Entity
- Type 1 · individual
8 nearest optometrist records → All 245 in South Dakota → Look up another NPI →
Also registered at 1420 North Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Eryn Caudill, ODOptometrist1225488950
Verify Tammy Kay Hersch in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich South Dakota board licenses this profession
Search for license 508Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
14% fewer Medicare Part D claims than the average optometrist in 2024
237 Medicare Part D claims for 65 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 47% of claims.
Most prescribed
- Latanoprost162 claims
- Brimonidine Tartrate22 claims
- Lumigan12 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: $24.69
1 payment: food and beverage; the largest payer was Johnson & Johnson Vision Care, 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.
Bills Medicare through one group practice
- Family Optical P CSpearfish, SD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tammy Kay Hersch among 245 optometrist records in South Dakota
Tammy Kay Hersch, O.D. is one of 245 optometrist records with a practice address in South Dakota. 81% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 50% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated1993 · median 2006 among the 183 with a school on file
- Record last updated2015 · 62% 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 South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
11 optometrist records list a practice address in Spearfish
They are 11 of the 382 NPPES records with a practice address in Spearfish, and 245 optometrist records in South Dakota.
All 245 in South Dakota → Every provider in Spearfish → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Eryn Caudill, ODSpearfish, SD 577831225488950
- Jessica Czerny, O.D.Spearfish, SD 577831457639080
- Robert Goodrich, ODSpearfish, SD 577831730133422
- Kathryn Haivala, ODSpearfish, SD 577831477564771
- A HaugeSpearfish, SD 577831982671145
- Scott KennedySpearfish, SD 577831871561795
- Elaine Petry, O.D.Spearfish, SD 577831083296669
- Antwan Randolph, O.D.Spearfish, SD 577831568798841
Common questions
What is Tammy Kay Hersch, O.D.'s NPI number?
Tammy Kay Hersch, O.D.'s National Provider Identifier (NPI) is 1609855980, issued on Jan 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Tammy Kay Hersch, O.D. located?
The NPPES record lists a practice address at 1420 North Ave, Spearfish, SD, 57783. Phone: (605) 642-0390. Providers update this record themselves, so call before visiting.
How can I verify Tammy Kay Hersch, O.D.'s license?
NPPES lists South Dakota license number 508, as entered by the provider. Search the South Dakota board that licenses this profession; the NPPES record confirms identity only.
How much does Tammy Kay Hersch, O.D. prescribe under Medicare Part D?
In 2024, Tammy Kay Hersch, O.D. had 237 Medicare Part D claims for 65 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.