Darby Katherine Tobar, PA-C
Physician Assistant · Livonia, MI
Darby Katherine Tobar, PA-C is a physician assistant with a practice address in Livonia, Michigan, and NPI 1851940167, issued on Sep 9, 2019. Check the license (Michigan 5601009512, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Darby Katherine Tobar
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 5601009512 MI
Self-reported in NPPES; status is on the state search - Practice location
- 17800 Newburgh RD Ste 103, Livonia, MI 48152
- Phone
- (734) 464-9540
- Enumerated
- Sep 9, 2019
- Record last updated
- Jul 21, 2023
- Fax
- (734) 464-0438
- Medicare enrollment
- Enrolled (PECOS I20200419000341); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 6,989 in Michigan → Look up another NPI →
Also registered at 17800 Newburgh RD Ste 103
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sherri Rosenfeld, D.O.Family Medicine Physician1760462220
Verify Darby Katherine Tobar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 5601009512Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% more Medicare Part D claims than the average physician assistant in 2024
1,557 Medicare Part D claims for 201 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Atorvastatin Calcium96 claims
- Lisinopril60 claims
- Losartan Potassium55 claims
- Amlodipine Besylate48 claims
- Levothyroxine Sodium43 claims
- Hydrochlorothiazide35 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: $621.25
35 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 64,719 providers of this specialty with any payment received $841.65 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
- Vmd Primary Providers Eastern Michigan PCLivonia, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Darby Katherine Tobar among 6,989 physician assistant records in Michigan
Darby Katherine Tobar, PA-C is one of 6,989 physician assistant records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 61% of them.
- NPI issued2019 · 61% of these records are older, 34% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2019 · median 2017 among the 4,739 with a school on file
- Record last updated2023 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
97 physician assistant records list a practice address in Livonia
They are 97 of the 4,733 NPPES records with a practice address in Livonia, and 6,989 physician assistant records in Michigan.
All 6,989 in Michigan → Every provider in Livonia → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Gayle Adams, PA-CLivonia, MI 481521366481541
- Alison Allor, PA-CLivonia, MI 481521184811036
- Barbara Bergeski, P.A.Livonia, MI 481521295705382
- Lois Bragg, PALivonia, MI 481521609998228
- Kathleen De Bin, PA-CLivonia, MI 481521326165481
- Danielle Friedrich, P.A.Livonia, MI 481521053381491
- Brian Kilbarger, PALivonia, MI 481521285712638
- Diane Lockhart, PALivonia, MI 481521114005550
Common questions
What is Darby Katherine Tobar, PA-C's NPI number?
Darby Katherine Tobar, PA-C's National Provider Identifier (NPI) is 1851940167, issued on Sep 9, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Darby Katherine Tobar, PA-C located?
The NPPES record lists a practice address at 17800 Newburgh RD Ste 103, Livonia, MI, 48152. Phone: (734) 464-9540. Providers update this record themselves, so call before visiting.
How can I verify Darby Katherine Tobar, PA-C's license?
NPPES lists Michigan license number 5601009512, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does Darby Katherine Tobar, PA-C prescribe under Medicare Part D?
In 2024, Darby Katherine Tobar, PA-C had 1,557 Medicare Part D claims for 201 beneficiaries; the average among physician assistant prescribers was 830. 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.