Dr. Leonard Michael Tyko , DDS, MD
General Practice • Santa Rosa, CA
1174 Montgomery Dr
Santa Rosa, CA 954054818
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on February 15, 2007; this date does not establish years in practice.
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Published CMS data list 337 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Amoxicillin — 164 prescription fills, including refills.
- Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) — 125 prescription fills, including refills.
- Doxycycline Hyclate — 26 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 4 records in the table · Guide: How to read Medicare Part D prescriber data
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Fewer Part D prescriptions than 60% of clinicians listed under General Practice in California (2024, 609 clinicians with data). Median for this group: 755. Middle half: 125 to 3,708.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part D prescriptions went from 207 in 2020 to 337 in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2020–2024.
Practice Location & Contact Primary Location
1174 Montgomery Dr
Santa Rosa, CA 954054818
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
General Practice: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
339 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$1,721 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $3,899.03 across 7 records.
By nature of payment
- Travel and Lodging: $2,057.60 across 1 record.
- Food and Beverage: $1,741.43 across 5 records.
- Gift: $100.00 across 1 record.
Reporting-company totals
- Straumann USA LLC: $3,899.03 across 7 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
NPI first issued
2007
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians, CMS release of October 2, 2026; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians, CMS release of October 2, 2026.
Can order Medicare-covered services
CMS lists Dr. Tyko as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Santa Rosa and California
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
Fewer Part D prescriptions than 60% of clinicians listed under General Practice in California (2024, 609 clinicians with data). Median for this group: 755. Middle half: 125 to 3,708.
Too few clinicians listed under General Practice in Santa Rosa have Medicare Part D data for 2024 to compare.
Part D drug cost
A lower Part D drug cost than 75% of clinicians listed under General Practice in California (2024, 609 clinicians with data). Median for this group: $49,322. Middle half: $2,066 to $279,323.
Too few clinicians listed under General Practice in Santa Rosa have Medicare Part D data for 2024 to compare.
9 active clinicians are listed under General Practice with a practice address in Santa Rosa, CA (1,964 in California).
Addresses are self-reported to NPPES and may be out of date.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 63% from 207 in 2020 to 337 in 2024.
- 2020: 207
- 2021: 223
- 2022: 309
- 2023: 325
- 2024: 337
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30-day fills
30-day fills increased 64% from 207 in 2020 to 339 in 2024.
- 2020: 207
- 2021: 223
- 2022: 309
- 2023: 327
- 2024: 339
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Part D drug cost
Part D drug cost increased 71% from $1,009 in 2020 to $1,721 in 2024.
- 2020: $1,009
- 2021: $1,108
- 2022: $1,631
- 2023: $1,709
- 2024: $1,721
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Industry payments (Open Payments)
Industry payments (Open Payments) increased 10% from $3,531.62 in 2021 to $3,899.03 in 2025.
- 2021: $3,531.62
- 2022: $672.57
- 2023: $2,277.39
- 2024: $328.94
- 2025: $3,899.03
Sources: CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $3,899.03.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Straumann USA LLC |
Travel and Lodging
Cash or cash equivalent
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— | General | $2,057.60 |
| Straumann USA LLC |
Food and Beverage
Cash or cash equivalent
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— | General | $1,494.51 |
| Straumann USA LLC |
Food and Beverage
Cash or cash equivalent
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— | General | $191.12 |
| Straumann USA LLC |
Gift
Cash or cash equivalent
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— | General | $100.00 |
| Straumann USA LLC |
Food and Beverage
Cash or cash equivalent
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— | General | $24.97 |
| Straumann USA LLC |
Food and Beverage
Cash or cash equivalent
|
— | General | $15.50 |
| Straumann USA LLC |
Food and Beverage
Cash or cash equivalent
|
— | General | $15.33 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Amoxicillin | Amoxicillin | 164 | 948 | $770.63 | 141 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 125 | 298 | $674.26 | 113 |
| Doxycycline Hyclate | Doxycycline Hyclate | 26 | 132 | $144.78 | 22 |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 22 | 58 | $130.87 | 16 |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 208D00000X
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.
NUCC Taxonomy Code: 1223S0112X
The specialty of dentistry which includes the diagnosis, surgical and adjunctive treatment of diseases, injuries and defects involving both the functional and esthetic aspects of the hard and soft tissues of the oral and maxillofacial region.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSSources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Career & Practice History
NPI enumerated February 15, 2007.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to November 2026.
NPI Administrative Meta
Other General Practices in Santa Rosa
- Dr. Ellen Barnett, MD
- Dr. Robert Heckey, MD
- Dr. Shiroko Sokitch, MD
- Dr. Michael Dacre, MD
- Dr. Jon Sterngold, MD
Mailing Address
1174 Montgomery Dr
Santa Rosa, CA 954054818
Phone: 7075454625