Active NPI 1083883987 Individual Practitioner Male Practitioner

Dr. Christopher Andrej Hajnik , MD

Orthopaedic Surgery • Encinitas, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Christopher Hajnik, MD is a certified Orthopaedic Surgery practicing in Encinitas, CA. With approximately 23 years of clinical experience since graduating from Jefferson Medical College Of Thomas Jefferson University in 2003, Dr. Hajnik delivers high-quality medical care to the local community at 332 SANTA FE DR.

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

Frequently performed procedures and clinical services include injection, triamcinolone acetonide, not otherwise specified, 10 mg, established patient outpatient office visit, x-ray of knee. 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
Suite 110

Encinitas, CA 920245143

Telephone 7609436700

Fax 7606324292

Associated Practice Facility / Clinic

🏢 Dva Renal Healthcare Inc Facility NPI 1356315329

Medicare Profile & Education

Medical School

Jefferson Medical College Of Thomas Jefferson University

Graduation Year

2003

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

23 Yrs +3.1 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

66.8% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Hajnik (23 Years) 23 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
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	264	50	$5.33	$0.98
99213 Established patient office or other outpatient visit, typically 15 minutes	214	165	$287.08	$97.27
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	207	164	$406.11	$136.64
73564 X-ray of knee, 4 or more views	115	107	$159.03	$53.74
73502 X-ray of hip, 2-3 views	108	87	$156.78	$53.71
20610 Aspiration and/or injection of fluid from large joint	101	86	$241.65	$75.31
73562 X-ray of knee, 3 views	84	66	$138.01	$46.45
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	72	72	$357.83	$118.54
73560 X-ray of knee, 1-2 views	67	33	$114.81	$38.89
20985 Computer-assisted surgery for muscle and bone procedure	48	45	$433.87	$143.42
27447 Replacement of knee joint, both sides of knee	46	43	$3963.48	$1312.63
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	45	45	$532.07	$176.67
73565 X-ray of both knees while standing	34	33	$134.07	$45.47
27130 Replacement of thigh bone and hip joint with prosthesis	33	33	$3948.91	$1316.73
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg	31	25	$20.68	$6.93
72170 X-ray of pelvis, 1-2 views	21	19	$95.98	$31.29

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	344	67	$5.10	$1.06
99213 Established patient office or other outpatient visit, typically 15 minutes	237	199	$293.40	$97.02
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	204	170	$413.62	$136.84
73502 X-ray of hip, 2-3 views	186	150	$162.26	$53.68
73564 X-ray of knee, 4 or more views	126	122	$161.31	$53.58
20610 Aspiration and/or injection of fluid from large joint	119	100	$231.84	$72.49
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	106	106	$362.33	$119.70
73562 X-ray of knee, 3 views	85	70	$140.74	$46.66
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	65	65	$533.93	$174.97
27130 Replacement of thigh bone and hip joint with prosthesis	52	51	$4039.89	$1335.17
20985 Computer-assisted surgery for muscle and bone procedure	46	44	$442.91	$146.75
27447 Replacement of knee joint, both sides of knee	45	43	$4028.77	$1330.68
73560 X-ray of knee, 1-2 views	40	22	$119.10	$39.23
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg	28	23	$20.68	$6.52
72170 X-ray of pelvis, 1-2 views	21	21	$96.19	$31.73
73522 X-ray of both hips, 3-4 views	16	15	$186.19	$61.41
73565 X-ray of both knees while standing	16	16	$139.74	$45.90

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J7318 Hyaluronan or derivative, durolane, for intra-articular injection, 1 mg	1,020	11	$55.59	$10.76
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	474	98	$5.10	$1.15
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	292	223	$420.36	$138.91
99213 Established patient office or other outpatient visit, typically 15 minutes	244	200	$298.13	$98.46
20610 Aspiration and/or injection of fluid from large joint	180	144	$254.91	$77.61
73564 X-ray of knee, 4 or more views	160	144	$162.20	$53.60
73502 X-ray of hip, 2-3 views	149	115	$164.56	$54.39
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	92	92	$542.09	$179.56
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	86	86	$366.21	$121.18
73562 X-ray of knee, 3 views	81	73	$143.49	$47.41
73560 X-ray of knee, 1-2 views	70	37	$119.59	$39.64
20985 Computer-assisted surgery for muscle and bone procedure	57	53	$454.92	$150.23
27447 Replacement of knee joint, both sides of knee	55	51	$4099.38	$1345.90
J7326 Hyaluronan or derivative, gel-one, for intra-articular injection, per dose	48	36	$3750.00	$1215.82
27130 Replacement of thigh bone and hip joint with prosthesis	36	36	$4103.64	$1355.42
73565 X-ray of both knees while standing	34	34	$142.48	$47.25
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg	34	30	$20.68	$6.68
20611 Aspiration and/or injection of fluid large joint using ultrasound guidance	22	20	$409.12	$118.52
72170 X-ray of pelvis, 1-2 views	16	15	$96.50	$31.85
73522 X-ray of both hips, 3-4 views	14	14	$187.86	$62.16

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J7322 Hyaluronan or derivative, hymovis, for intra-articular injection, 1 mg	888	16	$107.19	$31.67
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	468	84	$5.10	$1.27
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	323	244	$420.03	$140.27
99213 Established patient office or other outpatient visit, typically 15 minutes	267	204	$296.51	$99.04
20610 Aspiration and/or injection of fluid from large joint	232	158	$261.86	$79.29
73502 X-ray of hip, 2-3 views	145	133	$159.03	$53.12
73564 X-ray of knee, 4 or more views	126	126	$156.96	$52.32
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	108	108	$362.70	$121.34
73560 X-ray of knee, 1-2 views	103	54	$117.81	$38.97
J7326 Hyaluronan or derivative, gel-one, for intra-articular injection, per dose	102	63	$3750.00	$1219.00
73562 X-ray of knee, 3 views	82	74	$137.71	$46.08
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	76	76	$541.02	$180.34
73565 X-ray of both knees while standing	50	50	$139.15	$46.56
20985 Computer-assisted surgery for muscle and bone procedure	43	42	$455.22	$151.74
27447 Replacement of knee joint, both sides of knee	42	41	$4096.08	$1355.28
97110 Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes	38	24	$97.98	$28.45
97140 Therapy procedure using manual technique, each 15 minutes	30	23	$89.82	$22.95
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg	27	26	$20.68	$6.81
G0283 Electrical stimulation (unattended), to one or more areas for indication(s) other than wound care, as part of a therapy plan of care	20	14	$45.51	$10.51
27130 Replacement of thigh bone and hip joint with prosthesis	18	17	$4084.36	$1366.99
73522 X-ray of both hips, 3-4 views	18	18	$182.52	$60.84
97112 Therapy procedure to re-educate brain-to-nerve-to-muscle function, each 15 minutes	13	12	$114.18	$38.06

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J7322 Hyaluronan or derivative, hymovis, for intra-articular injection, 1 mg	2,208	50	$102.18	$33.05
J7318 Hyaluronan or derivative, durolane, for intra-articular injection, 1 mg	1,680	21	$56.60	$18.26
99213 Established patient office or other outpatient visit, typically 15 minutes	322	228	$243.75	$80.47
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	304	64	$5.30	$1.47
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	185	160	$352.89	$116.46
20610 Aspiration and/or injection of fluid from large joint	183	133	$236.87	$74.89
73502 X-ray of hip, 2-3 views	145	121	$151.93	$50.43
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	117	117	$348.89	$115.64
73564 X-ray of knee, 4 or more views	103	101	$147.06	$48.87
73560 X-ray of knee, 1-2 views	96	48	$112.37	$37.16
73562 X-ray of knee, 3 views	70	65	$131.82	$43.66
27447 Replacement of knee joint, both sides of knee	52	48	$4345.77	$1438.98
20985 Computer-assisted surgery for muscle and bone procedure	51	47	$465.18	$153.99
73565 X-ray of both knees while standing	41	41	$130.71	$43.33
27130 Replacement of thigh bone and hip joint with prosthesis	29	26	$4352.91	$1440.98
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg	22	20	$20.68	$7.06
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	20	20	$642.46	$212.04
73521 X-ray of both hips, 2 views	12	12	$134.04	$44.23

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J7318 Hyaluronan or derivative, durolane, for intra-articular injection, 1 mg	8,222	93	$50.23	$16.96
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	596	118	$5.14	$1.60
99213 Established patient office or other outpatient visit, typically 15 minutes	506	372	$232.98	$77.92
20610 Aspiration and/or injection of fluid from large joint	323	240	$223.17	$68.53
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	257	226	$342.11	$114.16
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	213	213	$341.39	$113.20
73564 X-ray of knee, 4 or more views	211	192	$135.66	$45.16
73502 X-ray of hip, 2-3 views	169	144	$136.82	$46.89
73560 X-ray of knee, 1-2 views	104	53	$105.73	$35.14
73562 X-ray of knee, 3 views	88	78	$117.27	$40.63
20985 Computer-assisted surgery for muscle and bone procedure	59	54	$455.26	$150.07
27447 Replacement of knee joint, both sides of knee	58	53	$4242.81	$1399.91
73565 X-ray of both knees while standing	50	50	$122.35	$40.70
27130 Replacement of thigh bone and hip joint with prosthesis	48	43	$4245.29	$1400.70
97110 Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes	40	17	$98.57	$27.22
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg	37	32	$20.22	$6.78
J7326 Hyaluronan or derivative, gel-one, for intra-articular injection, per dose	35	27	$2399.27	$442.82
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	35	35	$629.75	$207.51
97140 Therapy procedure using manual technique, each 15 minutes	34	14	$89.82	$23.14
73721 Mri scan of leg joint without contrast	16	16	$1200.00	$253.63
73522 X-ray of both hips, 3-4 views	11	11	$157.41	$54.59

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	673	132	$3.55	$1.79
99213 Established patient office or other outpatient visit, typically 15 minutes	610	377	$155.16	$76.22
20610 Aspiration and/or injection of fluid from large joint	385	269	$150.84	$68.20
73564 X-ray of knee, 4 or more views	277	255	$86.80	$42.80
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	277	243	$228.70	$112.40
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	261	261	$228.04	$112.33
J7326 Hyaluronan or derivative, gel-one, for intra-articular injection, per dose	235	138	$1087.22	$515.12
73502 X-ray of hip, 2-3 views	170	148	$90.79	$44.55
73560 X-ray of knee, 1-2 views	102	53	$68.79	$33.55
20985 Computer-assisted surgery for muscle and bone procedure	57	54	$304.34	$149.74
73565 X-ray of both knees while standing	52	52	$79.19	$38.65
27447 Replacement of knee joint, both sides of knee	50	47	$2830.86	$1375.50
97110 Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes	46	20	$66.37	$24.40
97140 Therapy procedure using manual technique, each 15 minutes	36	21	$61.48	$22.38
27130 Replacement of thigh bone and hip joint with prosthesis	32	31	$2833.66	$1394.21
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg	32	32	$12.12	$7.09
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	30	29	$422.02	$207.73
72170 X-ray of pelvis, 1-2 views	23	22	$69.66	$34.32
73562 X-ray of knee, 3 views	18	18	$78.32	$38.56
73721 Mri scan of leg joint without contrast	16	16	$750.00	$257.00
72110 X-ray of lower and sacral spine, minimum of 4 views	14	14	$106.56	$52.49
73522 X-ray of both hips, 3-4 views	11	11	$106.66	$52.56

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	782	137	$3.59	$1.80
99213 Established patient office or other outpatient visit, typically 15 minutes	636	394	$153.79	$84.76
20610 Aspiration and/or injection of fluid from large joint	455	292	$148.82	$78.11
J7326 Hyaluronan or derivative, gel-one, for intra-articular injection, per dose	307	168	$1086.30	$545.87
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	277	241	$226.04	$124.20
73564 X-ray of knee, 4 or more views	208	186	$85.39	$47.00
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	207	207	$226.31	$124.61
73502 X-ray of hip, 2-3 views	185	164	$89.42	$49.26
73560 X-ray of knee, 1-2 views	109	56	$66.47	$36.54
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg	77	42	$14.58	$6.73
73562 X-ray of knee, 3 views	61	58	$77.02	$42.56
27447 Replacement of knee joint, both sides of knee	60	57	$2821.32	$1558.18
73565 X-ray of both knees while standing	55	55	$77.27	$42.50
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	33	32	$419.61	$231.43
20985 Computer-assisted surgery for muscle and bone procedure	29	28	$304.04	$168.03
27130 Replacement of thigh bone and hip joint with prosthesis	26	24	$2930.24	$1588.38
73721 Mri scan of leg joint without contrast	24	23	$661.06	$278.55
73522 X-ray of both hips, 3-4 views	22	21	$105.07	$57.75
72110 X-ray of lower and sacral spine, minimum of 4 views	17	17	$105.03	$57.73
72170 X-ray of pelvis, 1-2 views	15	15	$68.46	$37.79
27236 Treatment of upper end of broken thigh bone with placement of stabilizing device or prosthetic replacement	12	12	$2492.77	$1377.45

Medical Specialties & State Licenses

Orthopaedic Surgery Primary Specialty

NUCC Taxonomy Code: 207X00000X

State License CA A114865

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 - Adult Reconstructive Orthopaedic Surgery

NUCC Taxonomy Code: 207XS0114X

State License CA A114865

Recognized by several state medical boards as a fellowship subspecialty program of orthopaedic surgery, adult reconstructive orthopaedic surgeons deal with reconstructive procedures such as joint arthroplasty (i.e., hip and knee), osteotomy, arthroscopy, soft-tissue reconstruction, and a variety of other adult reconstructive surgical procedures.

Hospital & Practice Group Affiliations

San Dieguito Orthopedic Medical Center P C

332 Santa Fe Dr, Encinitas, CA 920245143

Phone: 7609436700

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

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. Nathan Hammel , MD

Orthopaedic Surgery

NPI 1558435644

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

11 Historical Events

✅

NPI Profile Active June 16, 2017

NPI status registered as active in NPPES database

📍

Updated Practice Location June 16, 2017

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

📍

Updated Business Mailing Address June 16, 2017

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

👤

Provider Name / Credentials Updated June 16, 2017

Recorded as CHRISTOPHER HAJNIK, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 16, 2017

Orthopaedic Surgery (License #A114865 in CA)

✅

NPI Profile Active January 21, 2013

NPI status registered as active in NPPES database

📍

Updated Practice Location January 21, 2013

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

📍

Updated Business Mailing Address January 21, 2013

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

👤

Provider Name / Credentials Updated January 21, 2013

Recorded as CHRISTOPHER HAJNIK, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 21, 2013

Orthopaedic Surgery (License #A114865 in CA)

🟢

Initial NPI Registration & Enumeration February 25, 2008

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1083883987

Entity Type:

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

Enumeration Date: February 25, 2008

Last Update: June 16, 2017

Sole Proprietor: No

Update or Correct Profile

Mailing Address

332 Santa Fe Dr, Suite 110

Encinitas, CA 920245143

Phone: 7609436700

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.