Physician Profile
Unclaimed ProfileAbout MASKIN
Based in Pasadena, CA, Johnathan David Maskin, M.D. is listed in the NPI registry under anesthesiology. According to Medicare claims data, Johnathan cared for 44 Medicare patients across 46 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
- (626) 397-5000
- Email not available
Practice Locations
100 W CALIFORNIA BLVD
Pasadena, CA 91105
Procedures Most Often Billed to Medicare
46 services · 44 patients · 2 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of artery tube for blood sampling or infusion through skin | Procedure | 36620 |
28 |
| Ultrasonic guidance for blood vessel access | Imaging | 76937 |
18 |
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 anesthesiology specialists at this location 4
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 4
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 — 28 related providers in 4 groups
Other anesthesiology specialists in Pasadena 4
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1980 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of artery tube for blood sampling or infusion through skin 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Maskin?
Dr. Maskin is an anesthesiology in Pasadena, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “ANESTHESIOLOGY”.
NPI registry
What is Dr. Maskin's address?
Dr. Maskin is listed at 100 W CALIFORNIA BLVD, Pasadena, CA 91105. 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. Maskin?
The number on file is (626) 397-5000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Maskin's NPI number?
Dr. Maskin's National Provider Identifier is 1386668366. 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. Maskin train?
Dr. Maskin attended Other, graduating in 1980. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Maskin been practicing?
Dr. Maskin has 46 years experience. Calculated from a graduation year of 1980, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Maskin perform?
According to Medicare billing data, Dr. Maskin performs procedures including insertion of artery tube for blood sampling or infusion through skin; reads or performs imaging such as ultrasonic guidance for blood vessel access. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Maskin confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Maskin. 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.