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Edit this profileAt a glance
- 9400 N Name Uno, Gilroy, CA 95020
About Dr. Ahn
Based in Gilroy, CA, Mark M. Ahn, M.D. is listed in the NPI registry under anesthesiology. According to Medicare claims data, Mark cared for 66 Medicare patients across 71 services. The services billed most often include anesthesia for lens surgery. NPI 1417934670 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
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
- (408) 848-2000
- Email not available
Practice Locations
9400 N NAME UNO
Gilroy, CA 95020
Conditions Commonly Evaluated or Treated
Within Anesthesiology 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
Anesthesia complications
- Anesthesia Allergy or Reaction
- Fear of Waking Up During Surgery
Back & spine
- Arthritis of the spine
- Degenerative disc disease
- Failed back surgery syndrome
- Herniated disc
- Lower back pain
- Neck pain
- Sacroiliac joint pain
- Spinal compression fracture
- Spinal stenosis
- Spondylolisthesis
- Tailbone pain
- Upper Back Pain
Chronic pain
- Chest Wall Pain After Surgery
Facial & jaw pain
- Temporomandibular joint disorder
- Throat nerve pain
General pain
- Cancer pain
- Chronic pain
- Fibromyalgia
- Severe post-op pain
Head & facial pain
- Chronic migraines
- Occipital neuralgia
- Spinal headache
- Trigeminal neuralgia
Headaches
Joint pain
- Hip Replacement Pain
- Knee pain
- Lateral hip pain and trochanteric bursitis
- Shoulder Pain
Mental health
- Trauma
- Treatment-resistant depression
Muscle pain
Musculoskeletal pain
Nerve pain
- Abdominal wall nerve pain
- Complex Regional Pain Syndrome
- Foot Numbness and Tingling
- Groin nerve pain after hernia surgery
- Nerve damage after surgery
- Neuropathy
- Outer thigh burning and numbness
- Phantom limb pain
- Pinched nerve
- Piriformis syndrome
- Sciatica
- Shingles pain
- Tarsal Tunnel Syndrome
Pelvic pain
- Chronic pelvic pain
- Pudendal nerve pain
Post-surgery recovery
- Hoarseness and throat pain after surgery
- Nausea After Surgery
Sedation & anesthesia
- Anesthesia anxiety
- History of anesthesia complications
Spine pain
- Torn spinal disc
- Whiplash neck injury
Procedures & services
Ablation
- Hip radiofrequency ablation
Head & facial procedures
- Botox for chronic migraines
- Facial nerve block for headache
- Occipital nerve block
Implants & devices
- Pain pump implant
- Pain pump refill and check
- Peripheral nerve stimulator implant
- Spinal cord stimulator implant
- Spinal cord stimulator trial
Infusion therapies
Infusion therapy
- Lidocaine Infusion for Chronic Pain
Joint injections
Muscle injections
- Trigger-point injection
Nerve blocks
- Abdominal Nerve Block
- Celiac Plexus Nerve Block
- Ganglion impar block
- Groin nerve block
- Pudendal nerve block
- Superior hypogastric plexus block
Nerve injections
- Celiac plexus block
- Lumbar sympathetic block
- Nerve block
- Rib nerve block
- Shoulder nerve block
- Stellate ganglion block
Nerve procedures
- Knee nerve block and ablation
- Peripheral nerve hydrodissection
- Radiofrequency ablation
Pain relief procedures
- Cryoneurolysis
Regional anesthesia
- Adductor canal block
- Brachial plexus block
- Popliteal nerve block
Sedation
- IV sedation for endoscopy
Sedation & anesthesia
- General anesthesia
- Labor epidural
- Moderate dental sedation
- Pre-surgery anesthesia consult
- Sedation for dental work
- Spinal spinal block
Spine injections
- Epidural steroid injection
- Facet joint injection
- Medial branch block
- Sacroiliac joint injection
- Tailbone epidural injection
Spine procedures
- Blood patch for spinal headache
- Epidural Lysis Of Adhesions
- Interspinous Spacer
- Kyphoplasty
- Mild procedure for spinal stenosis
- Percutaneous disc decompression
- Spinal bone nerve ablation
- Vertebroplasty
Procedures Most Often Billed to Medicare
71 services · 66 patients · 1 distinct code
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Anesthesia for lens surgery | Anaesthesia | 00142 |
71 | More often than most peers in Anesthesiology |
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.
Other anesthesiologists at this location 5
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
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.
More connections — 8 related providers in 1 group
Also performs Anesthesia for lens surgery 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Mark M. Ahn's specialty?
Mark M. Ahn is an anesthesiologist in Gilroy, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Anesthesiology”.
NPI registry
Where can I find Mark M. Ahn?
Mark M. Ahn is listed at 9400 N Name Uno, Gilroy, CA 95020. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Mark M. Ahn?
The number on file is (408) 848-2000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Mark M. Ahn's NPI number?
Mark M. Ahn's National Provider Identifier is 1417934670. 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
How long has Mark M. Ahn been practicing?
Mark M. Ahn has 21+ years experience. Registered with an NPI since 2005. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What is Mark M. Ahn known for?
According to Medicare billing data, Mark M. Ahn provides treatments such as anesthesia for lens surgery. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Mark M. Ahn confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Mark M. Ahn. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.