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Edit this profileAt a glance
- 535 E 70Th St, New York, NY 10021
About Dr. Mackenzie
Listed in the NPI registry as a specialist, C R. Mackenzie, M.D. practices in New York, NY. C graduated from Js Weill Medical College, Cornell University in 1983. Medicare claims data shows C provided 3,261 services to 1,015 patients. The services billed most often include injection, denosumab, 1 mg, injection, methylprednisolone acetate, 1 mg, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. NPI 1750344289 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
- (212) 606-1669
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
535 E 70TH ST
New York, NY 10021
Procedures Most Often Billed to Medicare
3,261 services · 1,015 patients · 17 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
92 | As often as other peers in Specialist |
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
23 | Less often than most peers in Specialist |
| Routine electrocardiogram (ecg) using at least 12 leads with tracing | Treatment | 93005 |
99 | Too few peers to compare |
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
25 | As often as other peers in Specialist |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
23 | Less often than most peers in Specialist |
| Injection, denosumab, 1 mg | Drug given | J0897 |
1,380 | Less often than most peers in Specialist |
| Injection, methylprednisolone acetate, 1 mg | Drug given | J1010 |
720 | Less often than most peers in Specialist |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
290 | More often than most peers in Specialist |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
189 | More often than most peers in Specialist |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
146 | As often as other peers in Specialist |
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 specialists in New York 8
Same specialty, same city.
Trained at Js Weill Medical College, Cornell University 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1983 at Js Weill Medical College, Cornell University 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 NY who bill this service to Medicare most often.
Common questions
What does C R. Mackenzie specialize in?
C R. Mackenzie is a specialist in New York, NY. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is C R. Mackenzie located?
C R. Mackenzie is listed at 535 E 70Th St, New York, NY 10021. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is C R. Mackenzie's phone number?
The number on file is (212) 606-1669. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for C R. Mackenzie?
C R. Mackenzie's National Provider Identifier is 1750344289. 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 C R. Mackenzie train?
C R. Mackenzie attended Js Weill Medical College, Cornell University, graduating in 1983. This comes from the CMS National Downloadable File.
CMS public data
How much experience does C R. Mackenzie have?
C R. Mackenzie has 43 years experience. Calculated from a graduation year of 1983, reported in the CMS National Downloadable File.
CMS public data
What does C R. Mackenzie do most often?
According to Medicare billing data, C R. Mackenzie performs procedures including insertion of needle into vein for collection of blood sample and aspiration and/or injection of fluid from large joint; provides treatments such as routine electrocardiogram using at least 12 leads with tracing and influenza vaccine split virus, preservative free, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is C R. Mackenzie's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by C R. Mackenzie. If this is you, claiming it is free.
Guide.md
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