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- 2627 E Washington Blvd, Pasadena, CA 91107
About Dr. Northrop
Gregory D. Northrop, MD practices sports medicine in Pasadena, CA. Gregory is a 1998 graduate of Columbia University College of Physicians and Surgeons. Gregory is also listed as specializing in orthopaedic sports medicine and orthopaedic surgery. According to Medicare claims data, Gregory cared for 1,405 Medicare patients across 13,192 services. The services billed most often include injection, methylprednisolone acetate, 1 mg, hyaluronan or derivative, synvisc or synvisc-one, for intra-articular injection, 1 mg, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. The provider's National Provider Identifier (NPI) is 1962404582.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (626) 797-2002
- Email not available
Practice Locations
2627 E WASHINGTON BLVD
Pasadena, CA 91107
Conditions Commonly Evaluated or Treated
Within Sports Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Bone
- Bone Bruise
- Stress fracture
Bone injuries
Chest and torso
- Bruised Ribs
Elbow & Arm
Foot & Ankle
Foot and ankle
Hand & Wrist
Hand and wrist
Hip & Thigh
- Groin Strain
- Hip labral tear
- Lateral hip pain and trochanteric bursitis
- Muscle strain
- Snapping Hip Syndrome
- Sports Hernia
Joint injuries
- Dislocated Kneecap
Joint pain
- Hip osteoarthritis
- Osteoarthritis
- Water On The Knee
Knee
Lower Leg
Muscle and tendon injuries
- Charley Horse In Thigh
- Hip Pain and Tightness
Nerve pain
Pediatric & Teen Sports
- Little League Elbow
- Osgood-Schlatter Disease
- Sever's Disease
Shoulder
Shoulder injuries
- Clavicle pain
- Shoulder Labrum Tear
Spine & Back
Sports health
- Athlete Low Energy and Overtraining
Sprains and tears
- High Ankle Sprain
- PCL tear
- Torn LCL
Procedures & services
Most searched procedures
- Concussion protocol
- Joint injections
- PRP therapy
- Ultrasound-guided injections
Bracing and support
- Patellar Taping
Consultations
- Sports Injury Second Opinion
Diagnostics
- Compartment Pressure Testing
- Joint Ultrasound
Exams & Clearance
- Return-To-Play Clearance
- Sports physical
Injections
Injections & Pain Relief
- Bursa Aspiration And Injection
- Joint injection or aspiration
- Knee Fluid Drainage
- Knee Joint Injection
- Nerve Hydrodissection
- Trigger Point Injections
Injury management
- Splinting and temporary casting
Pain management
- Knee Nerve Ablation
Performance & Assessment
- Injury Prevention Screening
- Lactate Threshold Testing
- Running Gait Analysis
- VO2 Max Testing
Performance and testing
- DEXA Body Composition Scan
- Professional Bike Fitting
- Resting Metabolic Rate Test
- Running Form Coaching
Recovery therapy
- Hyperbaric Oxygen For Sports Injury
- Whole Body Cryotherapy
Regenerative & Advanced Therapy
- Prolotherapy
- Shockwave Therapy
- Stem Cell Therapy For Joints
- Tenex Procedure
Regenerative medicine
- Stem Cell Injections For Joint Pain
Rehab & Recovery
- Active release technique
- Blood flow restriction therapy
- Cupping Therapy
- Dry needling
- Exercise Prescription
- Muscle Scraping
- Sports Physical Therapy
Rehabilitation
- Aquatic Therapy
- Dynamic Neuromuscular Stabilization
Support & Bracing
- Custom Knee Bracing
- Custom orthotics
- Custom Walking Boot Fitting
- Foot Casting
- Kinesio Taping
Procedures Most Often Billed to Medicare
13,192 services · 1,405 patients · 15 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
312 | More often than most peers in Sports Medicine |
| Replacement of knee joint, both sides of knee | Procedure | 27447 |
12 | Less often than most peers in Sports Medicine |
| Computer-assisted surgery for muscle and bone procedure | Procedure | 20985 |
12 | Less often than most peers in Sports Medicine |
| X-ray of knee, 1-2 views | Imaging | 73560 |
201 | More than most peers in Sports Medicine |
| X-ray of shoulder, minimum of 2 views | Imaging | 73030 |
177 | More often than most peers in Sports Medicine |
| X-ray of both knees while standing | Imaging | 73565 |
126 | More than most peers in Sports Medicine |
| X-ray of knee, 3 views | Imaging | 73562 |
75 | As often as other peers in Sports Medicine |
| X-ray of pelvis, 1-2 views | Imaging | 72170 |
13 | Less often than most peers in Sports Medicine |
| Injection, methylprednisolone acetate, 1 mg | Drug given | J1010 |
10,543 | More often than most peers in Sports Medicine |
| Hyaluronan or derivative, synvisc or synvisc-one, for intra-articular injection, 1 mg | Drug given | J7325 |
1,008 | As often as other peers in Sports Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 5
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other sports medicine doctors in Pasadena 3
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at Columbia University College of Physicians and Surgeons 8
Other providers in the same specialty who trained at the same institution.
Class of 1998 at Columbia University College of Physicians and Surgeons 8
Providers who graduated from the same medical school in the same year.
Also performs Aspiration and/or injection of fluid from large joint 7
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Northrop?
Dr. Northrop is a sports medicine doctor in Pasadena, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Sports Medicine”.
NPI registry
What is Dr. Northrop's address?
Dr. Northrop is listed at 2627 E Washington Blvd, Pasadena, CA 91107. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Northrop?
The number on file is (626) 797-2002. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Northrop's NPI number?
Dr. Northrop's National Provider Identifier is 1962404582. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Northrop train?
Dr. Northrop attended Columbia University College of Physicians and Surgeons, graduating in 1998. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Northrop been practicing?
Dr. Northrop has 28 years experience. Calculated from a graduation year of 1998, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Northrop perform?
According to Medicare billing data, Dr. Northrop performs procedures including aspiration and/or injection of fluid from large joint, replacement of knee joint, both sides of knee and computer-assisted surgery for muscle and bone procedure; reads or performs imaging such as x-ray of knee, 1-2 views and x-ray of shoulder, minimum of 2 views, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Northrop confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Northrop. If this is you, claiming it is free.
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