NPPES file of Aug 9, 2026

Nathan Thomas Blacker, DO

Family Medicine Physician · Lawton, OK

Nathan Thomas Blacker, DO is a family medicine physician with a practice address in Lawton, Oklahoma, and NPI 1407358922, issued on Feb 28, 2018. Check the license (Oklahoma 6614, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; 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
1407358922
Name
Nathan Thomas Blacker
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
6614 OK
Self-reported in NPPES; status is on the state search
Practice location
3401 W Gore Blvd, Lawton, OK 73505
Phone
(509) 899-8730
Enumerated
Feb 28, 2018
Record last updated
Apr 15, 2022
Medicare enrollment
Enrolled (PECOS I20200421003203); accepts Medicare assignment
Medical or professional school
Pacific Nw Un Of Hs, Col Of Osteopathic Medicine, 2018
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 3401 W Gore Blvd

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

  1. Tyler Adams, D.O.Emergency Medicine Physician1538542170
  2. Eduardo Aguayo, PHARMDPharmacist1164260394
  3. Albert AllauiganPhysical Therapist1598974883
  4. Mahmoud Alnsour, DOEmergency Medicine Physician1467193003
  5. Susmitha Aluri, MDFamily Medicine Physician1275282048
  6. Ama Amofah, D.O.Hospitalist Physician1093021016

Verify Nathan Thomas Blacker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
    Search for license 6614
    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
Open the Oklahoma 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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37% more Medicare Part D claims than the average family medicine physician in 2024

4,864 Medicare Part D claims for 263 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 176 claims were for opioids.

  1. Nathan Blacker4,864
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium179 claims
  2. Gabapentin172 claims
  3. Furosemide149 claims
  4. Omeprazole140 claims
  5. Losartan Potassium137 claims
  6. Levothyroxine Sodium131 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: $17.82

1 payment: food and beverage; the largest payer was Exact Sciences Corporation. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Nathan Blacker$17.82
  2. Specialty average$902.55

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

One hospital affiliation

  1. Lawton Indian HospitalLawton, OK · Acute Care Hospitals

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).

Nathan Thomas Blacker among 2,303 family medicine physician records in Oklahoma

Nathan Thomas Blacker, DO is one of 2,303 family medicine physician records with a practice address in Oklahoma. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 80% of them.

  • NPI issued2018 · 80% of these records are older, 18% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2018 · median 2008 among the 1,407 with a school on file
  • Record last updated2022 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

73 family medicine physician records list a practice address in Lawton

They are 73 of the 2,582 NPPES records with a practice address in Lawton, and 2,303 family medicine physician records in Oklahoma.

The 8 family medicine physician records with the nearest ZIP codes

  1. Renato Caballero, MDLawton, OK 735051306831458
  2. Richard Campbell, M.D.Lawton, OK 735051851381875
  3. Usha Chandra, MDLawton, OK 735051144216573
  4. Mark Cotton, DOLawton, OK 735051013911908
  5. Deena Dave, MDLawton, OK 735051164418356
  6. Dale Duguid, MDLawton, OK 735051700871399
  7. Francois Dutoit, MDLawton, OK 735051760477509
  8. Krista Gordon, MDLawton, OK 735051164426193

Common questions

What is Nathan Thomas Blacker, DO's NPI number?

Nathan Thomas Blacker, DO's National Provider Identifier (NPI) is 1407358922, issued on Feb 28, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Nathan Thomas Blacker, DO located?

The NPPES record lists a practice address at 3401 W Gore Blvd, Lawton, OK, 73505. Phone: (509) 899-8730. Providers update this record themselves, so call before visiting.

How can I verify Nathan Thomas Blacker, DO's license?

NPPES lists Oklahoma license number 6614, as entered by the provider. Search the Oklahoma Board of Medical Licensure and Supervision at https://www.okmedicalboard.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Nathan Thomas Blacker, DO prescribe under Medicare Part D?

In 2024, Nathan Thomas Blacker, DO had 4,864 Medicare Part D claims for 263 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.