NPPES file of Aug 9, 2026

Dennis Christian Blackburn, D.O.

Orthopaedic Surgery Physician · Santa Maria, CA

Dennis Christian Blackburn, D.O. is an orthopaedic surgery physician with a practice address in Santa Maria, California, and NPI 1851353205, issued on Apr 3, 2006. Check the license (California 20A7267, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1851353205
Name
Dennis Christian Blackburn
Credential
D.O.
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License number
20A7267 CA
Self-reported in NPPES; status is on the state search
Practice location
2342 Professional Pkwy, Santa Maria, CA 93455
Phone
(805) 349-9545
Enumerated
Apr 3, 2006
Record last updated
Feb 19, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(805) 349-8025
Medicaid ID
00AZ727670 CA
Medicare enrollment
Enrolled (PECOS I20081223000309); accepts Medicare assignment
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 2342 Professional Pkwy

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

  1. Ryan Allen, DOFamily Medicine Physician1265417752
  2. Chloe AnticouniBehavior Technician1821757246
  3. Maria CarverBehavior Technician1649745464
  4. Paul Castello, M.D.Orthopaedic Surgery Physician1669434510
  5. Nicole CroninBehavior Technician1972172708
  6. Dianne Dawes, P.A.-CMedical Physician Assistant1154459774

Verify Dennis Christian Blackburn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A7267
    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 California 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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4% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024

333 Medicare Part D claims for 129 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 135 claims were for opioids.

  1. Dennis Blackburn333
  2. Specialty average346

Most prescribed

  1. Hydrocodone-Acetaminophen107 claims
  2. Diclofenac Sodium96 claims
  3. Calcitonin-Salmon32 claims
  4. Ampicillin Trihydrate23 claims
  5. Oxycodone Hcl16 claims
  6. Clindamycin Hcl15 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.

The MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score91.1
  2. Costout of 100 · 30%100.0
  3. Promoting interoperabilityout of 100 · 25%99.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $1,084.41

12 payments; by number, the most common kind was food and beverage; the largest payer was Biotissue Holdings Inc. The 15,003 providers of this specialty with any payment received $23,022.89 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Dennis Blackburn$1,084
  2. Specialty average$23,023

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

  1. Central Coast Orthopedic Medical GroupSanta Maria, CA

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

Dennis Christian Blackburn among 2,276 orthopaedic surgery physician records in California

Dennis Christian Blackburn, D.O. is one of 2,276 orthopaedic surgery physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 46% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated1993 · median 2003 among the 1,347 with a school on file
  • Record last updated2010 · 66% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Surgery Physician providers in California

There are 2,276 orthopaedic surgery physician records in California.

The 8 orthopaedic surgery physician records with the nearest ZIP codes

  1. Yolanda Batin-Van Rooyen, M.D.Santa Maria, CA 934551427151935
  2. Paul Castello, M.D.Santa Maria, CA 934551669434510
  3. Eric Curtis, MDSanta Maria, CA 934551033746474
  4. James Kasper, M.D.Santa Maria, CA 934551962445098
  5. Jeffrey Spoo, M.D.Santa Maria, CA 934551053374694
  6. David Book, MDSanta Maria, CA 934541780603506
  7. Thor Gjerdrum, MDSanta Maria, CA 934541407830177
  8. Michael Laird, M.D.Pismo Beach, CA 934491609953892

Common questions

What is Dennis Christian Blackburn, D.O.'s NPI number?

Dennis Christian Blackburn, D.O.'s National Provider Identifier (NPI) is 1851353205, issued on Apr 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Dennis Christian Blackburn, D.O. located?

The NPPES record lists a practice address at 2342 Professional Pkwy, Santa Maria, CA, 93455. Phone: (805) 349-9545. Providers update this record themselves, so call before visiting.

How can I verify Dennis Christian Blackburn, D.O.'s license?

NPPES lists California license number 20A7267, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Dennis Christian Blackburn, D.O. prescribe under Medicare Part D?

In 2024, Dennis Christian Blackburn, D.O. had 333 Medicare Part D claims for 129 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.

What is Dennis Christian Blackburn, D.O.'s MIPS final score?

The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.