Physician Profile
Unclaimed ProfileAbout LONG
Based in Vacaville, CA, James Melvin Long, M.D. is listed in the NPI registry under hematology/oncology. James graduated from University of Texas Medical Branch at Galveston in 1984. James is also listed as specializing in hematology & oncology. According to Medicare claims data, James cared for 587 Medicare patients across 1,280 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (707) 624-8000
- Email not available
Practice Locations
1020 NUT TREE RD STE 390
Vacaville, CA 95687
Procedures Most Often Billed to Medicare
1,280 services · 587 patients · 7 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
604 |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
373 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
165 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
47 |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
35 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
35 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
21 |
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 hematology/oncology specialists at this location 3
Same specialty, same street address — most likely the same department or group.
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.
Trained at University of Texas Medical Branch at Galveston 8
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 1984 at University of Texas Medical Branch at Galveston 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Dr. Long's specialty?
Dr. Long is a hematology/oncology in Vacaville, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “HEMATOLOGY/ONCOLOGY”.
NPI registry
Where can I find Dr. Long?
Dr. Long is listed at 1020 NUT TREE RD STE 390, Vacaville, CA 95687. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Long?
The number on file is (707) 624-8000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Long's NPI number?
Dr. Long's National Provider Identifier is 1194821868. 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
What is Dr. Long's medical education?
Dr. Long attended University of Texas Medical Branch at Galveston, graduating in 1984. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Long been practicing?
Dr. Long has 42 years experience. Calculated from a graduation year of 1984, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Long known for?
According to Medicare billing data, Dr. Long the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Long confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Long. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.