Active NPI 1558435644 Individual Practitioner Male Practitioner

Dr. Nathan Hammel , MD

Orthopaedic Surgery • Encinitas, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Nathan Hammel, MD is a certified Orthopaedic Surgery practicing in Encinitas, CA. With approximately 20 years of clinical experience since graduating from Jefferson Medical College Of Thomas Jefferson University in 2006, Dr. Hammel delivers high-quality medical care to the local community at 332 SANTA FE DR STE 110.

Dr. Hammel is affiliated with San Dieguito Orthopedic Medical Center P C and accepts Medicare assignment.

Frequently performed procedures and clinical services include hyaluronan or derivative, durolane, for intra-articular injection, 1 mg, injection, triamcinolone acetonide, not otherwise specified, 10 mg, established patient outpatient office visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

332 Santa Fe Dr Ste 110

Encinitas, CA 920245143

Telephone 7609436700

Associated Practice Facility / Clinic

🏢 San Dieguito Orthopedic Medical Center P C Facility NPI 1356433965

Medicare Profile & Education

Medical School

Jefferson Medical College Of Thomas Jefferson University

Graduation Year

2006

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Orthopaedic Surgery in Encinitas, CA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

20 Yrs +0.1 yrs vs City Avg

City Avg: 19.9 Yrs

State Avg: 28.4 Yrs

Regional Practice Density

14 Specialists

Practicing in Encinitas, CA (2527 Statewide)

Telehealth Adoption Rate

7.1% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

67.9% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Hammel (20 Years) 20 Yrs

Encinitas Specialty Average (19.9 Years) 19.9 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
J7318 Hyaluronan or derivative, durolane, for intra-articular injection, 1 mg	1,140	13	$55.59	$6.55
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	438	37	$5.15	$0.98
99213 Established patient office or other outpatient visit, typically 15 minutes	139	95	$286.72	$97.32
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	71	57	$408.49	$136.75
20610 Aspiration and/or injection of fluid from large joint	66	48	$259.53	$75.17
73564 X-ray of knee, 4 or more views	41	33	$159.47	$53.73
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	41	41	$357.18	$118.56
73560 X-ray of knee, 1-2 views	36	16	$115.65	$38.89
27447 Replacement of knee joint, both sides of knee	21	20	$4334.10	$1376.38
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	19	19	$533.14	$176.81
73502 X-ray of hip, 2-3 views	15	15	$161.71	$53.97
73565 X-ray of both knees while standing	13	13	$135.85	$45.49
20985 Computer-assisted surgery for muscle and bone procedure	11	11	$434.42	$143.85

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	384	44	$5.10	$1.05
99213 Established patient office or other outpatient visit, typically 15 minutes	130	86	$293.09	$96.80
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	73	58	$413.00	$136.94
20610 Aspiration and/or injection of fluid from large joint	68	50	$247.25	$74.37
73564 X-ray of knee, 4 or more views	43	39	$161.32	$53.68
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	34	34	$532.80	$177.06
27447 Replacement of knee joint, both sides of knee	26	23	$4043.35	$1359.37
73502 X-ray of hip, 2-3 views	22	22	$162.16	$54.04
20985 Computer-assisted surgery for muscle and bone procedure	21	17	$443.78	$146.75
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	18	18	$362.70	$119.81
27130 Replacement of thigh bone and hip joint with prosthesis	16	16	$4064.23	$1376.82

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	776	73	$5.12	$1.15
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	163	110	$420.36	$138.94
99213 Established patient office or other outpatient visit, typically 15 minutes	128	95	$298.14	$98.34
20610 Aspiration and/or injection of fluid from large joint	119	80	$261.25	$77.09
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	51	51	$543.45	$179.42
73564 X-ray of knee, 4 or more views	33	33	$162.27	$53.63
73560 X-ray of knee, 1-2 views	27	15	$119.67	$39.56
73502 X-ray of hip, 2-3 views	26	24	$164.67	$54.33
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	20	20	$366.24	$121.10
27447 Replacement of knee joint, both sides of knee	20	19	$4304.35	$1379.84

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	810	65	$4.82	$1.27
99213 Established patient office or other outpatient visit, typically 15 minutes	161	117	$296.23	$98.69
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	134	102	$420.81	$140.27
20610 Aspiration and/or injection of fluid from large joint	102	66	$272.57	$80.27
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	54	54	$541.02	$180.34
73564 X-ray of knee, 4 or more views	46	43	$156.96	$52.32
73560 X-ray of knee, 1-2 views	40	25	$116.91	$38.97
73502 X-ray of hip, 2-3 views	27	23	$154.76	$51.59
73030 X-ray of shoulder, minimum of 2 views	22	21	$116.67	$38.89
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	17	17	$364.02	$121.34
73565 X-ray of both knees while standing	12	12	$139.68	$46.56
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	12	12	$628.02	$209.34

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	526	53	$5.14	$1.46
99213 Established patient office or other outpatient visit, typically 15 minutes	212	122	$243.67	$80.27
20610 Aspiration and/or injection of fluid from large joint	88	60	$233.86	$69.76
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	48	48	$349.03	$115.42
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	47	42	$353.13	$116.73
73502 X-ray of hip, 2-3 views	40	33	$151.25	$50.44
73564 X-ray of knee, 4 or more views	31	27	$147.57	$48.82
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	21	21	$642.01	$212.74
73560 X-ray of knee, 1-2 views	19	11	$111.49	$37.14
73030 X-ray of shoulder, minimum of 2 views	17	16	$111.15	$36.84
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	11	11	$529.47	$175.30

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	547	63	$4.96	$1.59
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	130	112	$343.42	$113.60
99213 Established patient office or other outpatient visit, typically 15 minutes	125	94	$234.40	$78.23
20610 Aspiration and/or injection of fluid from large joint	71	58	$217.23	$66.33
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	67	67	$343.02	$113.44
73564 X-ray of knee, 4 or more views	56	34	$135.91	$45.20
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	50	50	$518.49	$168.71
73502 X-ray of hip, 2-3 views	48	34	$135.61	$46.80
73110 X-ray of wrist, minimum of 3 views	38	20	$120.09	$39.83
73610 X-ray of ankle, minimum of 3 views	25	14	$104.59	$36.34
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	23	22	$620.53	$207.69
73030 X-ray of shoulder, minimum of 2 views	22	19	$97.53	$32.76
73560 X-ray of knee, 1-2 views	18	11	$105.87	$35.10

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	187	31	$3.55	$1.80
99213 Established patient office or other outpatient visit, typically 15 minutes	146	100	$155.16	$76.43
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	68	68	$228.04	$112.38
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	56	51	$228.71	$112.62
73110 X-ray of wrist, minimum of 3 views	35	16	$76.80	$37.84
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	30	30	$346.48	$165.78
73564 X-ray of knee, 4 or more views	28	18	$86.82	$42.78
20610 Aspiration and/or injection of fluid from large joint	26	23	$137.16	$65.20
73030 X-ray of shoulder, minimum of 2 views	25	19	$64.04	$31.59
73502 X-ray of hip, 2-3 views	24	18	$90.80	$44.70
73630 X-ray of foot, minimum of 3 views	21	18	$64.10	$31.56
73130 X-ray of hand, minimum of 3 views	17	11	$69.66	$34.30

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	16	14	$158.55	$85.12
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	12	12	$226.52	$124.84

Medical Specialties & State Licenses

Orthopaedic Surgery Primary Specialty

NUCC Taxonomy Code: 207X00000X

State License CA A139718

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.

Orthopaedic Surgery

NUCC Taxonomy Code: 207X00000X

State License IN 01065216A

Hospital & Practice Group Affiliations

San Dieguito Orthopedic Medical Center P C

332 Santa Fe Dr, Encinitas, CA 920245143

Phone: 7609436700

Secondary Practice Locations

2451a Impala Dr

Carlsbad, CA 920107227

Phone: 7609182322

332 Santa Fe Dr Ste 120

Encinitas, CA 920245143

Phone: 7609424400

354 Santa Fe Dr

Encinitas, CA 920245142

Phone: 7606336501

320 Santa Fe Dr Ste Ll2

Encinitas, CA 920245140

Phone: 7606323900

7901 Frost St

San Diego, CA 921232701

Phone: 8589393400

Practice Associates & Co-Workers

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

13 Associated Practitioners

Rafael Papandrea , OPA-C, OT-C

Specialist/Technologist, Other - Surgical Technologist

NPI 1003104878

OPAC, OTC

Dr. Christopher Hajnik , MD

Orthopaedic Surgery

NPI 1083883987

Doctor of Medicine (M.D.)

James Gillan , PA-C

Physician Assistant - Surgical

NPI 1194832634

Physician Assistant (Certified)

Dr. Nayna Patel , MD

Physical Medicine & Rehabilitation

NPI 1275615734

Doctor of Medicine (M.D.)

Dr. Gregory Loren , MD

Orthopaedic Surgery - Sports Medicine

NPI 1578655106

Doctor of Medicine (M.D.)

Michael Skyhar , MDFACS

Orthopaedic Surgery - Sports Medicine

NPI 1578655114

Career & Practice History Timeline

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

12 Historical Events

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) March 17, 2018

Orthopaedic Surgery (License #01065216A in IN)

✅

NPI Profile Active January 17, 2018

NPI status registered as active in NPPES database

📍

Updated Practice Location January 17, 2018

Registered at 332 SANTA FE DR STE 110, ENCINITAS, CA 920245143 (Tel: 7609436700)

📍

Updated Business Mailing Address January 17, 2018

Registered at 332 SANTA FE DRIVE SUITE 110, ENCINITAS, CA 92024

👤

Provider Name / Credentials Updated January 17, 2018

Recorded as NATHAN HAMMEL, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 17, 2018

Orthopaedic Surgery (License #A139718 in CA)

✅

NPI Profile Active November 13, 2012

NPI status registered as active in NPPES database

📍

Updated Practice Location November 13, 2012

Registered at 34800 BOB WILSON DR, NMCSD, SAN DIEGO, CA 921341098 (Tel: 6195326000)

📍

Updated Business Mailing Address November 13, 2012

Registered at 4811 OLNEY ST, SAN DIEGO, CA 921093660

👤

Provider Name / Credentials Updated November 13, 2012

Recorded as NATHAN HAMMEL, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 13, 2012

Orthopaedic Surgery (License #01065216A in IN)

🟢

Initial NPI Registration & Enumeration November 20, 2006

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: 1558435644

Entity Type:

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

Enumeration Date: November 20, 2006

Last Update: March 17, 2018

Sole Proprietor: No

Update or Correct Profile

Mailing Address

332 Santa Fe Drive Suite 110

Encinitas, CA 92024

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.