Physician

Diane C Hahn, PH.D.

According to 2025 Medicare claims, Diane Hahn, PH.D. (NPI: 1598722191) practices psychologist (billing independently) in the St. Petersburg-Clearwater-Largo, FL market, with the plurality of this provider's patient population coming from Pinellas, FL. Hahn uses personal NPI as billing NPI and primary practice location at 34689-4827.

Hahn's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 33 traditional Medicare patients, billed 551 HCPCS/CPT codes, and received $59,852 in Medicare payments. The top billing code was 90837 (Psychotherapy, 1 hour). No Open Payments records. You can download detailed data with all billing codes (2015-2024). For more recent data, please contact us.

Over the past 10 years, this provider's Medicare Part B carrier billing has moved from a lower plateau to a higher plateau, from $27,513 to $59,852. Concurrently, this provider has fewer than 5 years of reported Part D prescription costs data, so a reliable trend cannot be assigned. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.

Part B Carrier Billing Trend

Medicare payment trend, with N of patients and claim lines in the table.

Part B Carrier Billing Trend. X-axis: year 2015-2024. Y-axis: Medicare payment, unit: USD. Field: Tot_Mdcr_Pymt_Amt. Source: Medicare Physician & Other Practitioners by Provider.0$38K$76K2015 Medicare payment: $27,513 (USD; Tot_Mdcr_Pymt_Amt)2016 Medicare payment: $21,708 (USD; Tot_Mdcr_Pymt_Amt)2017 Medicare payment: $30,886 (USD; Tot_Mdcr_Pymt_Amt)2018 Medicare payment: $36,627 (USD; Tot_Mdcr_Pymt_Amt)2019 Medicare payment: $40,105 (USD; Tot_Mdcr_Pymt_Amt)2020 Medicare payment: $32,463 (USD; Tot_Mdcr_Pymt_Amt)2021 Medicare payment: $47,089 (USD; Tot_Mdcr_Pymt_Amt)2022 Medicare payment: $75,859 (USD; Tot_Mdcr_Pymt_Amt)2023 Medicare payment: $73,341 (USD; Tot_Mdcr_Pymt_Amt)2024 Medicare payment: $59,852 (USD; Tot_Mdcr_Pymt_Amt)2015201620172018201920202021202220232024
YearPatientsClm LinesPayment
201528278$27,513
201626224$21,708
201727319$30,886
201844387$36,627
201934390$40,105
202025293$32,463
202140396$47,089
202240661$75,859
202343673$73,341
202433551$59,852

Part D Events Trend

Drug cost trend, with N of patients and prescription claims in the table.

No connected Part D records

No connected Part D records

DME Billing Trend

Medicare payment trend, with N of patients and DME claim records in the table.

No connected DME records

No connected DME records

* / # = suppressed by CMS; 0 = reported zero; N/R = not reported or blank.

Top 5 Part B carrier billing codes in 2024

By total payments.

CodeDescriptionPatientsClm LinesTotal Payment
90837Psychotherapy, 1 hour32462$114
90834Psychotherapy, 45 minutes1162$78

Top 5 Part D drugs in 2024

By total drug costs.

No connected Part D drug-level records for 2024.

Top 5 DME services in 2024

No connected or detailed DME service-level records for 2024.

Open Payments Summary

No connected Open Payments records were found for this physician in General Payments, Research Payments, or Ownership / Investment Interests.

FAQ

What Medicare data is available for Diane C. Hahn, PH.D.?

Tedicare shows public-source Medicare data for Diane C. Hahn, PH.D. (NPI 1598722191), including provider identity, specialty, market context, Medicare Part B activity, Part D prescribing, DME records, Open Payments where available, billing organization details, and ACO affiliation signals where available. Profile data covers 2015-2024, with current attribution based on 2025 claims where available.

Does Diane C. Hahn, PH.D. have ACO affiliation data?

No ACO affiliation record is shown in the available Tedicare data for this profile.

What billing organization is linked to Diane C. Hahn, PH.D.?

A separate primary affiliated billing organization is not shown for this profile in the available data.

Does Diane C. Hahn, PH.D. have Open Payments data?

No connected Open Payments records are shown for this physician in the available General Payments, Research Payments, or Ownership / Investment Interests data.

Can I download physician-level Medicare data from Tedicare?

Yes. Tedicare provides sample physician export data and paid custom physician data exports for research, planning, outreach, and market analysis. Exports can include physician profile fields, market and specialty context, billing organization details, ACO affiliation signals where available, and Medicare utilization data.