Active NPI 1932234952 Individual Practitioner Male Practitioner

Dr. Michael G Klassen , MD

Orthopaedic Surgery • Monterey, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Michael Klassen, MD is a certified Orthopaedic Surgery practicing in Monterey, CA. With approximately 37 years of clinical experience since graduating from University Of California, Geffen School Of Medicine in 1989, Dr. Klassen delivers high-quality medical care to the local community at 10 HARRIS CT BLDG A.

Dr. Klassen is affiliated with Athena Medical Group Of The Central Coast Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, new patient outpatient office visit, hyaluronan or derivative, gelsyn-3, for intra-articular injection, 0.1 mg. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

10 Harris Ct Bldg A
Suite A1

Monterey, CA 939405704

Telephone 8316439788

Fax 8316570161

Associated Practice Facility / Clinic

🏢 Monterey Peninsula Orthopaedic And Sports Medicine Institute Facility NPI 1538123658

Medicare Profile & Education

Medical School

University Of California, Geffen School Of Medicine

Graduation Year

1989

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Orthopaedic Surgery in Monterey, CA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

37 Yrs +6.5 yrs vs City Avg

City Avg: 30.5 Yrs

State Avg: 28.4 Yrs

Regional Practice Density

14 Specialists

Practicing in Monterey, CA (2527 Statewide)

Telehealth Adoption Rate

14.3% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

46.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Klassen (37 Years) 37 Yrs

Monterey Specialty Average (30.5 Years) 30.5 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	14	12	$180.23	$96.21

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	71	44	$126.79	$94.71
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	17	17	$175.00	$119.61

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	25	19	$120.00	$93.34

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	15	13	$120.00	$93.41

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J7328 Hyaluronan or derivative, gelsyn-3, for intra-articular injection, 0.1 mg	9,244	24	$3.25	$2.26
99213 Established patient office or other outpatient visit, typically 15 minutes	114	80	$196.00	$71.31
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	95	74	$282.13	$104.96
20610 Aspiration and/or injection of fluid from large joint	92	41	$201.36	$51.76
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	50	31	$15.00	$1.79
97530 Therapy procedure using functional activities	38	11	$60.00	$32.62
73562 X-ray of knee, 3 views	20	17	$151.00	$36.08
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	18	18	$429.00	$159.14

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J7328 Hyaluronan or derivative, gelsyn-3, for intra-articular injection, 0.1 mg	31,753	51	$3.24	$2.33
99213 Established patient office or other outpatient visit, typically 15 minutes	398	162	$105.10	$70.90
97530 Therapy procedure using functional activities	316	20	$60.00	$26.83
20610 Aspiration and/or injection of fluid from large joint	296	86	$195.00	$50.93
97110 Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes	216	37	$52.00	$25.97
97140 Therapy procedure using manual technique, each 15 minutes	207	28	$59.15	$23.25
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	155	76	$15.00	$1.81
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	140	100	$149.01	$101.06
97112 Therapy procedure to re-educate brain-to-nerve-to-muscle function, each 15 minutes	84	21	$51.11	$28.26
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	55	55	$257.18	$150.58
73562 X-ray of knee, 3 views	49	38	$151.00	$35.52
J7324 Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose	47	14	$260.00	$148.61
G0283 Electrical stimulation (unattended), to one or more areas for indication(s) other than wound care, as part of a therapy plan of care	44	13	$42.64	$9.46
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	24	24	$178.00	$104.23
73030 X-ray of shoulder, minimum of 2 views	22	19	$179.00	$28.73
97161 Evaluation of physical therapy, typically 20 minutes	18	18	$108.33	$78.35
A6450 Light compression bandage, elastic, knitted/woven, width greater than or equal to five inches, per yard	18	14	$10.00	$1.92
72100 X-ray of lower and sacral spine, 2-3 views	17	16	$167.00	$34.85
29876 Removal of joint lining from multiple knee joint compartments using an endoscope	17	16	$3061.00	$603.23
97163 Evaluation for physical therapy, typically 45 minutes	15	12	$115.00	$78.39
73502 X-ray of hip, 2-3 views	11	11	$161.00	$41.40

Medical Specialties & State Licenses

Orthopaedic Surgery Primary Specialty

NUCC Taxonomy Code: 207X00000X

State License CA G69478

An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

Additional State Medicaid & Healthcare Payer Identifiers

Commercial Insurance / Payer ID Blue Shield

G69478 (CA)

Hospital & Practice Group Affiliations

Athena Medical Group Of The Central Coast Inc

335 Katherine Ave, Salinas, CA 939013176

Phone: 8318845048

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

8 Associated Practitioners

Dr. Ramon Jimenez , MD

Orthopaedic Surgery

NPI 1265574230

Doctor of Medicine (M.D.)

Mark Sinclair , ATC

Specialist/Technologist - Athletic Trainer

NPI 1275992521

Certified Athletic Trainer

Mary Bilbro , FNP

Nurse Practitioner - Family

NPI 1295010866

Family Nurse Practitioner

Dr. Chelsea Cates , DPT

Physical Therapist

NPI 1306203203

Doctor of Physical Therapy

Bernadette Rede , PT

Physical Therapist

NPI 1689890329

Physical Therapist

Dr. Scott Graham , MD

Orthopaedic Surgery

NPI 1700801313

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events

✅

NPI Profile Active January 30, 2008

NPI status registered as active in NPPES database

📍

Updated Practice Location January 30, 2008

Registered at 10 HARRIS CT BLDG A, SUITE A1, MONTEREY, CA 939405704 (Tel: 8316439788)

📍

Updated Business Mailing Address January 30, 2008

Registered at PO BOX 2019, MONTEREY, CA 939422019 (Tel: 8316439788)

👤

Provider Name / Credentials Updated January 30, 2008

Recorded as MICHAEL KLASSEN, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 30, 2008

Orthopaedic Surgery (License #G69478 in CA)

🟢

Initial NPI Registration & Enumeration February 22, 2007

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1932234952

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: February 22, 2007

Last Update: January 30, 2008

Sole Proprietor: Yes

Update or Correct Profile

Mailing Address

Po Box 2019

Monterey, CA 939422019

Phone: 8316439788

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.