Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

John M Haworth, MD

Individual provider Anesthesiology Physician · NPI 1225052269

John M Haworth, MD practises Anesthesiology in Greenwood Village, Colorado. Qualified in 1991, 35 years ago. Practices with US Anesthesia Partners of Colorado Inc, a 479-clinician group and accepts Medicare assignment. Licensed in California and Colorado.

Years since qualifying
35
Licensed in
CA, CO
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

8000 E Maplewood Ave Ste 200
Greenwood Village, CO 80111-4727
Phone: (303) 438-3999
Fax: (720) 439-9500
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 34498 (CO)
Anesthesiology Physician Taxonomy 207L00000X · Licence G75177 (CA)

Record details

NPI number1225052269
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 26, 2006
Last updated in NPPESDecember 26, 2019
Certification dateDecember 26, 2019

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyANESTHESIOLOGY
Medical schoolOTHER
Graduated 1991 (35 years in practice)
Group practice Us Anesthesia Partners Of Colorado Inc — 479 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients100
Services billed 112 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • AdventHealth Littleton Hospital · Littleton, CO
  • AdventHealth Porter Hospital · Denver, CO

Colleagues at US Anesthesia Partners of Colorado Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 479 clinicians in the practice; 12 are shown here.

Other providers in Greenwood Village