Physician Profile
Frederik A. Pennings, M.D., PhD
Unclaimed ProfileAbout Dr. Pennings
Based in Worcester, MA, Frederik A. Pennings, M.D., PhD is listed in the NPI registry under neurosurgery. Frederik is also listed as specializing in neurological surgery. Medicare claims data shows Frederik provided 395 services to 366 patients. The services billed most often include insertion of cage or mesh device to spine bone and disc space during spine fusion, new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. NPI 1215126479 identifies this record in the national registry.
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
- (508) 334-1886
- Email not available
Practice Locations
119 BELMONT ST
Worcester, MA 01605
Conditions Commonly Evaluated or Treated
Within Neurological Surgery 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
Brain & spine conditions
Brain conditions
Brain disorders
- Acoustic Neuroma
- Brain Vascular Malformation
- Chiari Malformation
- Drug-Resistant Seizures
- Epidermoid cyst
- Hemorrhagic stroke
- Meningitis
- Normal Pressure Hydrocephalus
- Papilledema
- Pituitary Tumor
Brain injury
Brain tumors
Movement disorders
Nerve disorders
- Carpal tunnel
- Cubital tunnel syndrome
- Cut Or Injured Nerve
- Face Twitching
- Occipital neuralgia
- Outer thigh burning and numbness
- Thoracic outlet syndrome
- Trigeminal neuralgia
Pain
Pediatric conditions
Spine & back
- Arthritis of the spine
- Chronic back pain
- Chronic Neck Pain
- Degenerative disc disease
- Failed back surgery syndrome
- Severe back pain
- Spinal Cord Tumor
- Spondylolisthesis
- Tethered Spinal Cord
Spine conditions
- Bone Spurs In The Spine
- Fluid Cyst In Spinal Cord
- Spinal compression fracture
- Spine Infection
- Stress Fracture Of The Spine
Spine deformity
Trauma & injury
Procedures & services
Most searched procedures
Brain & spine surgery
Brain procedures
- Awake Brain Mapping Surgery
- Brain Shunt Placement
- Chiari Decompression Surgery
- Deep Brain Stimulation
- Draining A Brain Bleed
- Facial Nerve Decompression Surgery
- Laser Brain Surgery
- Minimally Invasive Endoscopic Brain Surgery
- Needle Brain Biopsy
Brain surgery
Cranial reconstruction
Diagnostic & therapeutic
Endovascular procedures
Functional neurosurgery
Monitoring & trauma
Nerve procedures
Nerve surgery
Pain procedures
- Epidural steroid injection
- Facet Joint Injections
- Pain pump implant
- Radiofrequency ablation
- Spinal cord stimulator implant
Pediatric neurosurgery
Radiation & radiosurgery
Radiation surgery
Skull base surgery
Spasticity treatment
Spine procedures
- Artificial Disc Replacement
- Kyphoplasty
- Nerve Opening Widening
- Scoliosis correction surgery
- SI Joint Fusion
- Spinal Cyst Removal
- Tethered Cord Release
- Vertebra Removal Surgery
Spine surgery
- Minimally Invasive Spine Surgery
- Neck Canal Enlargement Surgery
- Spinal Cord Tumor Removal
- Vertebroplasty
Vascular neurosurgery
Procedures Most Often Billed to Medicare
395 services · 366 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of cage or mesh device to spine bone and disc space during spine fusion | Procedure | 22853 |
69 | More often than most peers in Neurosurgery |
| Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment | Procedure | 63047 |
33 | More often than most peers in Neurosurgery |
| Fusion of spine in lower back | Procedure | 22612 |
33 | More often than most peers in Neurosurgery |
| Fusion of lower spine bone through abdomen with partial removal of disc | Procedure | 22558 |
32 | More often than most peers in Neurosurgery |
| Placement of stabilizing device to back of 1 spine bone in neck | Procedure | 22840 |
30 | More than most peers in Neurosurgery |
| Placement of stabilizing device to front, 2-3 spine bone segments | Procedure | 22845 |
18 | More often than most peers in Neurosurgery |
| Fusion of upper spine bone with removal of disc and release of spinal cord or nerve, 1 disc | Procedure | 22551 |
16 | As often as other peers in Neurosurgery |
| Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment | Procedure | 63048 |
15 | Less often than most peers in Neurosurgery |
| Release of lower spinal cord and/or nerves, single segment | Procedure | 63056 |
11 | Less often than most peers in Neurosurgery |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
61 | More often than most peers in Neurosurgery |
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.
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 neurosurgery specialists in Worcester 8
Same specialty, same city.
Also performs Insertion of cage or mesh device to spine bone and disc space during spine fusion 8
Providers in MA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Pennings?
Dr. Pennings is a neurosurgery in Worcester, MA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Dr. Pennings's address?
Dr. Pennings is listed at 119 Belmont St, Worcester, MA 01605. 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. Pennings?
The number on file is (508) 334-1886. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Pennings?
Dr. Pennings's National Provider Identifier is 1215126479. 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. Pennings train?
Dr. Pennings attended Other, graduating in 1995. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Pennings have?
Dr. Pennings has 31 years experience. Calculated from a graduation year of 1995, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Pennings perform?
According to Medicare billing data, Dr. Pennings performs procedures including insertion of cage or mesh device to spine bone and disc space during spine fusion, partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment and fusion of spine in lower back, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Pennings's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Pennings. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.