NPPES file of Aug 9, 2026

Joseph Robert Lach, NP

Family Nurse Practitioner · Flagstaff, AZ

Joseph Robert Lach, NP is a family nurse practitioner with a practice address in Flagstaff, Arizona, and NPI 1285405514, issued on Jan 15, 2024. Check the license (Arizona 301003, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1285405514
Name
Joseph Robert Lach
Credential
NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
301003 AZ
Self-reported in NPPES; status is on the state search
Practice location
107 E Oak Ave Ste 201, Flagstaff, AZ 86001
Phone
(928) 913-8800
Enumerated
Jan 15, 2024
Record last updated
Jan 15, 2024
Medicare enrollment
Enrolled (PECOS I20240215003690); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 107 E Oak Ave Ste 201

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. David Thornton, M.D.Family Medicine Physician1952753733
  2. Madeline TilleyFamily Nurse Practitioner1669289070

Verify Joseph Robert Lach in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Arizona board licenses this profession
    Search for license 301003
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Arizona license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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39% fewer Medicare Part D claims than the average family nurse practitioner in 2024

800 Medicare Part D claims for 224 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 36 claims were for opioids.

  1. Joseph Lach800
  2. Specialty average1,305

Most prescribed

  1. Levothyroxine Sodium30 claims
  2. Atorvastatin Calcium29 claims
  3. Losartan Potassium29 claims
  4. Albuterol Sulfate Hfa22 claims
  5. Fluticasone Propionate21 claims
  6. Cyclobenzaprine Hcl19 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: $90.60

5 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Joseph Lach$90.60
  2. Specialty average$650.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Northern Arizona Healthcare CorporationFlagstaff, AZ
  2. Urgent Care Northern Arizona Healthcare LLCFlagstaff, AZ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Joseph Robert Lach among 5,933 family nurse practitioner records in Arizona

Joseph Robert Lach, NP is one of 5,933 family nurse practitioner records with a practice address in Arizona. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2024, is newer than 86% of them.

  • NPI issued2024 · 86% of these records are older, 8% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2023 · median 2019 among the 3,510 with a school on file
  • Record last updated2024 · 38% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

80 family nurse practitioner records list a practice address in Flagstaff

They are 80 of the 2,419 NPPES records with a practice address in Flagstaff, and 5,933 family nurse practitioner records in Arizona.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Gretchen Alsip Vollbrecht, ARNPFlagstaff, AZ 860011629176052
  2. Susann Clinton, FNPFlagstaff, AZ 860011861544744
  3. Theresa Dowell, P.T.Flagstaff, AZ 860011417082553
  4. Denise Gomolak, N.P.Flagstaff, AZ 860011881705804
  5. Dee Ann Kaserer, FNPFlagstaff, AZ 860011275605982
  6. Beth Kennedy, NPFlagstaff, AZ 860011669544383
  7. Sherry Mace, FNPFlagstaff, AZ 860011033237904
  8. Mary Pasternacki, RN, FNP-CFlagstaff, AZ 860011275690331

Common questions

What is Joseph Robert Lach, NP's NPI number?

Joseph Robert Lach, NP's National Provider Identifier (NPI) is 1285405514, issued on Jan 15, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Joseph Robert Lach, NP located?

The NPPES record lists a practice address at 107 E Oak Ave Ste 201, Flagstaff, AZ, 86001. Phone: (928) 913-8800. Providers update this record themselves, so call before visiting.

How can I verify Joseph Robert Lach, NP's license?

NPPES lists Arizona license number 301003, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Joseph Robert Lach, NP prescribe under Medicare Part D?

In 2024, Joseph Robert Lach, NP had 800 Medicare Part D claims for 224 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.