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Edit this profileAt a glance
- 9135 Sw Barnes Rd Ste 985, Portland, OR 97225
About Dr. Neifing
James L. Neifing, MD is a healthcare provider in Portland, OR specializing in endocrinology, diabetes & metabolism. Medicare claims data shows James provided 10,173 services to 3,750 patients. The services billed most often include injection, denosumab, 1 mg, insertion of needle into vein for collection of blood sample, and blood test, comprehensive group of blood chemicals. This provider record is associated with NPI 1437207941.
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
- (503) 297-3336
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
9135 SW BARNES RD STE 985
Portland, OR 97225
Conditions Commonly Evaluated or Treated
Within Endocrinology, Diabetes and Metabolism 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
Adrenal disorders
Blood sugar disorders
Bone and calcium disorders
Bones
Pituitary
Pituitary disorders
Thyroid
Thyroid disorders
Most searched conditions
Adrenal
Diabetes
Endocrine tumors
Hormone disorders
- Early or delayed puberty
- Excess facial or body hair
- Gynecomastia
- Perimenopause
- Testosterone deficiency
Hormones
Metabolic disorders
Metabolism
Parathyroid
Procedures & services
Adrenal
Adrenal evaluations
Blood sugar management
Bone evaluations
Bone treatments
Diabetes
- Automated Insulin System Setup
- Blood Ketone Monitoring
- C-Peptide Test
- Continuous Glucose Monitor Data Review
- Starting Insulin Therapy
- Medical nutrition therapy
Diabetes education
Genetic evaluations
Hormone treatments
- Growth Hormone Injections
- Hormone Replacement Therapy Consultation
- Estrogen and Progesterone Therapy
Hormones
Metabolic evaluations
Metabolism
Parathyroid
Pituitary
Pituitary evaluations
Routine Blood Tests
Thyroid
Thyroid procedures
- Thyroid Antibody Testing
- Thyroid Medication Adjustment
- Radioactive Iodine Treatment
- Thyroid Blood Test
- Thyroid Nodule Biopsy
- Thyroid Nodule Radiofrequency Ablation
Weight & Metabolism
Women's health
Most searched procedures
Diabetes preventive care
Procedures Most Often Billed to Medicare
10,173 services · 3,750 patients · 23 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
652 | More often than most peers in Endocrinology, Diabetes &… |
| Ultrasound scan of head and neck soft tissue | Imaging | 76536 |
64 | As often as other peers in Endocrinology, Diabetes &… |
| Ultrasound scan of organ tissue for measuring elasticity | Imaging | 76981 |
27 | Less often than most peers in Endocrinology, Diabetes &… |
| Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | Treatment | 95251 |
216 | More often than most peers in Endocrinology, Diabetes &… |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
75 | As often as other peers in Endocrinology, Diabetes &… |
| Injection, denosumab, 1 mg | Drug given | J0897 |
4,500 | More often than most peers in Endocrinology, Diabetes &… |
| Blood test, comprehensive group of blood chemicals | Lab test | 80053 |
608 | More often than most peers in Endocrinology, Diabetes &… |
| Blood test, lipids (cholesterol and triglycerides) | Lab test | 80061 |
552 | More often than most peers in Endocrinology, Diabetes &… |
| Ldl cholesterol level | Lab test | 83721 |
532 | More often than most peers in Endocrinology, Diabetes &… |
| Hemoglobin a1c level | Lab test | 83036 |
478 | More than most peers in Endocrinology, Diabetes &… |
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 endocrinologists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
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 — 32 related providers in 4 groups
Other endocrinologists in Portland 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1986 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in OR who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Neifing?
Dr. Neifing is an endocrinologist in Portland, OR. That is the designation recorded for this NPI in the federal registry, where it is listed as “Endocrinology, Diabetes & Metabolism”.
NPI registry
What is Dr. Neifing's address?
Dr. Neifing is listed at 9135 Sw Barnes Rd Ste 985, Portland, OR 97225. 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. Neifing?
The number on file is (503) 297-3336. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Neifing?
Dr. Neifing's National Provider Identifier is 1437207941. 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. Neifing train?
Dr. Neifing attended Other, graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Neifing have?
Dr. Neifing has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Neifing perform?
According to Medicare billing data, Dr. Neifing performs procedures including insertion of needle into vein for collection of blood sample; reads or performs imaging such as ultrasound scan of head and neck soft tissue and ultrasound scan of organ tissue for measuring elasticity; provides treatments such as continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report and injection of drug or substance under skin or into muscle, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Neifing's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Neifing. If this is you, claiming it is free.
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