Specialties

Medical billing specialties we serve

Northgate bills and credentials private practices across specialties. The nine below have their own billing playbook and page; the rest run on the same model. What changes by specialty is the denial pattern, the payer rules and the credentialing path. What never changes: a named account lead, every claim visible, pricing on the website.

Not sure if we cover you? Use the form at the bottom. We answer within one business day.

Nine playbooks

Specialties with their own billing playbook

What is different about billing each specialty, and the denial to watch for. Each full page covers codes, modifiers, payer rules, credentialing and pricing.

Mental health

Therapy billing lives on time-based codes, telehealth modifiers and closed payer panels. Credentialing is among the slowest of any specialty because panels for LCSW, LPC and LMFT fill up. We prioritize the payers that are still open.

Denial to watchCO-4, modifier missing or inconsistent (telehealth and time-based codes)
Page coming Mental health billing services

Chiropractic

High visit volume, low claim value, and Medicare covering only spinal manipulation. The AT modifier and medical necessity documentation decide whether you get paid.

Denial to watchCO-50, not medically necessary (maintenance care)
Page coming Chiropractic billing services

DME and HME

Prior authorization, proof of delivery, physician orders and rental cycles on every claim. More paperwork per dollar collected than most specialties, which is why DME carries a complexity factor on our pricing.

Denial to watchCO-16, missing documentation or information
Page coming DME billing services

Dental

Dental and medical cross-coding for procedures that medical insurance covers, coordination of benefits between dental and medical plans, and frequency limits by payer.

Denial to watchFrequency limit exceeded
Page coming Dental billing services

Podiatry

Routine foot care exclusions, class findings, and Q modifiers decide coverage. Diabetic foot care and nail debridement are where documentation gets tested.

Denial to watchCO-50, routine foot care not covered
Page coming Podiatry billing services

Anesthesia

Time units plus base units, physical status modifiers, and medical direction rules for CRNAs. One wrong start time changes the whole claim.

Denial to watchCO-4, anesthesia modifier missing or invalid
Page coming Anesthesia billing services

Physical therapy

8-minute rule, timed and untimed codes, the KX modifier past the threshold, and plan-of-care certifications that lapse. Visit caps by payer need tracking from day one.

Denial to watchCO-97, service bundled or not separately payable
Page coming Physical therapy billing services

Home health

OASIS, face-to-face documentation, 30-day payment periods under PDGM, and a notice of admission due within five days of the start of care. Timing errors cost whole periods.

Denial to watchTimely filing on the notice of admission
Page coming Home health billing services

EMS and ambulance

Medical necessity for the transport, level of service, mileage, origin and destination modifiers, and PCS forms for repetitive patients. Documentation from the crew decides the claim.

Denial to watchCO-50, transport not medically necessary
Page coming EMS billing services
Other specialties

Other specialties we bill for

Same model, same pricing. Want to know what we see in yours? Ask on the form below.

  • Allergy and immunology
  • Behavioral health groups
  • Cardiology
  • Dermatology
  • Endocrinology
  • Family medicine
  • Gastroenterology
  • Internal medicine
  • Nephrology
  • Neurology
  • Nurse practitioner practices
  • OB/GYN
  • Occupational therapy
  • Oncology
  • Ophthalmology
  • Optometry
  • Orthopedics
  • Otolaryngology (ENT)
  • Pain management
  • Pediatrics
  • Primary care
  • Psychiatry
  • Pulmonology
  • Rheumatology
  • Sleep medicine
  • Speech therapy
  • Urgent care
  • Urology
  • Wound care
The model

What changes by specialty, and what never does

Changes by specialty

  • Which codes and modifiers decide payment
  • The denial pattern and how we work it
  • Documentation we ask your providers for
  • The credentialing path and how long it takes
  • Whether a complexity factor applies (DME, EMS, home health)

Never changes

  • A named account lead with a direct line
  • Claims submitted within 48 hours
  • Every denial worked, every appeal filed
  • A shared status sheet and a weekly report
  • Pricing published on this site
Software

We work inside your software

Specialty-specific systems included: SimplePractice and TherapyNotes for mental health, ChiroTouch for chiropractic, Brightree for DME, Dentrix and Open Dental for dental, WebPT for physical therapy, Axxess and Kinnser for home health, ESO and ImageTrend for EMS.

Kareo / TebraAdvancedMDathenahealthDrChronoSimplePracticeTherapyNotesChiroTouchBrightreeDentrixWebPTAxxessESO
Not listed

Do not see your specialty?

Tell us what you do and what you bill with, and a billing lead will reply within one business day with whether we cover it and what we see in it.

Optional. No patient information, please.
FAQ

Questions about specialty billing

Which specialties does Northgate bill for?

Nine with their own billing playbook and page: mental health, chiropractic, DME and HME, dental, podiatry, anesthesia, physical therapy, home health, and EMS and ambulance. Most other outpatient specialties are billed on the same model and pricing. The full list is on this page.

Does pricing change by specialty?

The brackets are the same for every specialty. DME and HME, EMS and ambulance, and home health carry a complexity factor because they generate many low-value claims per dollar collected. It is shown on the pricing page and in your agreement before you sign.

Do you bill out-of-network claims?

Yes, for every specialty. Out-of-network billing follows the same submission and appeal process with the patient's benefits verified before the visit.

Can you credential me in my specialty?

Yes. Credentialing is a flat fee per provider, and the specialty page tells you which payers are typically open or closed for your specialty. Mental health is the slowest; most others follow the standard payer timelines. See our insurance credentialing services.

What if my specialty is not on the list?

Use the form above. We reply within one business day with a yes or a no, and if it is a no we will say why.

Last updated 12 October 2026. Reviewed by Name, title pending, Northgate Billing.

Free billing audit

See what your billing is leaving on the table

The free audit is benchmarked to your specialty. Ten questions and one report, a written answer in 3 business days.

What comes back, in writing
  • Your denial rate and the top three reasons behind it
  • Days in A/R against the benchmark for your specialty
  • Where the money is leaking and what we estimate is recoverable