NPI registry status
Active
2026 NPPES data Allergy Physician NPI 1598783789 M.D.
Verify on CMS → Peter Parker, M.D.
Allergy Physician in Glendale, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,017 in Allergy Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
3K
Medicare Part D claims · 382 beneficiaries · Allergy Physician avg: 755
Generic prescribing
68%
generic claims · 32% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
74.8/100
▼ 8 pts below national avg 83.1 · Mid-tier
Industry payments
$1.4K
63 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Peter Parker, M.D. reported a CMS MIPS final score of 74.8/100 - below the 83.1 national average - and filed 2,757 Medicare Part D claims in 2023.
- 74.8/100
- MIPS score · -8 vs avg
- 3K
- Part D claims, 2023
- 68%
- generic prescribing
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Peter Parker, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
75 12th percentile higher than 12% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Peter Parker, M.D. sits
This provider among allergy physician peers
Across the 175 allergy physician providers who report both Medicare Part D prescribing and a MIPS quality score, Peter Parker, M.D. writes more Part D claims than 92% of them and scores higher on MIPS quality than 21% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one allergy physician peer from a representative sample of 60; the gold marker is Peter Parker, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Peter Parker, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Peter Parker, M.D.?
Below national averagePrimary specialty
Allergy Physician
Medicare Part D claims
2,757 265% vs specialty avg
MIPS final score
74.8/100 8.3 pts vs avg
Specialty distribution in California
How Allergy Physician compares to other specialties among California providers
Medicare quality performance, MIPS
Peter Parker, M.D.'s 2023 MIPS final score plotted against the Allergy Physician national average
- MIPS Final Score
- 74.8/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Allergy Physician) - 74.8/100 vs national avg 83.1
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Peter Parker, M.D. appears in the CMS NPPES registry as an Allergy Physician provider holding M.D. credentials at 1100 W GLENOAKS BLVD, Glendale, CA, 91202, with a listed phone of (818) 546-2626. NPI 1598783789 was issued on 07/17/2006.
Medicare Part D records for calendar year 2023 show 2,757 prescription claims written by this provider, covering 382 Medicare beneficiaries and totaling roughly $1.7 million in drug spend, split 32% brand-name and 68% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 74.8/100 for the 2023 performance year (Quality 66.6, Cost 44), compared with the national average of 83.1.
Allergy Physician is a narrow specialty nationwide, with 1,017 enrolled providers across 50 states and an average of 755 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1598783789 |
|---|---|
| Specialty | Allergy Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 07/17/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
74.8456
Final Score
Avg: 83.1
66.6287
Quality
43.9804
Cost
Reporting: Group practice
Hospital and facility affiliations
Facilities where Peter Parker, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Peter Jahangir Parker M D Inc
Glendale, CA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Peter Parker, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$1.4K
Largest payer
Regeneron Healthcare Solutions, Inc.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - California MBC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 - they are NOT specific to Peter Parker, M.D.. To verify Peter Parker, M.D.'s current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Above average
Peter Parker, M.D. - brand share 32.0%
Allergy Physician average
32% brand-name claims vs 68% generic, on 2,757 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
2,757
Total Claims
$1.7M
Total Drug Cost
382
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,895
- Total Day Supply
- 78,600
- Brand vs Generic
- 32% brand / 68% generic
- Brand Drug Cost
- $1.6M
- Generic Drug Cost
- $46K
- Antibiotic Claims
- 57
Patient Demographics
- Average Patient Age
- 75.2 years
- Avg HCC Risk Score
- 1.53
- Gender Split
- 59% female / 41% male
- Age Distribution
- <65: 18, 65-74: 168, 75-84: 145, 85+: 51
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Peter Parker, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Fluticasone Propio…
Fluticasone Propionate
639 claims
- Azelastine Hcl
Azelastine Hcl
366 claims
- Triamcinolone Acet…
Triamcinolone Acetonide
320 claims
- Dupixent Syringe
Dupixent Syringe
259 claims
- Xolair 116
Xolair
116 claims
- Prednisone 111
Prednisone
111 claims
- Ventolin Hfa 102
Ventolin Hfa
102 claims
- Trelegy Ellipta 101
Trelegy Ellipta
101 claims
| Drug | Claims |
|---|---|
| Fluticasone Propionate | 639 |
| Azelastine Hcl | 366 |
| Triamcinolone Acetonide | 320 |
| Dupixent Syringe Dupilumab | 259 |
| Xolair Omalizumab | 116 |
| Prednisone | 111 |
| Ventolin Hfa Albuterol Sulfate | 102 |
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 101 |
| Breo Ellipta Fluticasone/Vilanterol | 71 |
| Famotidine | 70 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Allergy Physician Overview
How Peter Parker, M.D. fits within the Allergy Physician landscape nationally.
1,017
Allergy Physician Providers in US
50
States with Allergy Physician
755
Avg Claims per Provider
Peter Parker, M.D.'s 2,757 claims are above the specialty average of 755.
Nearby Allergy Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Parker.
Dr. Shilpi Anand
M.D.
Walnut Creek, CA
Dr. Paula Ardron
MD
Bakersfield, CA
Dr. Tania Aung
M.D.
Vacaville, CA
Dr. Julia Bae
MD
Bakersfield, CA
Dr. Jeffrey Balduzzi
M.D.
Stockton, CA
Compare Allergy Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Allergy Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Peter Parker, M.D.'s specialty? ▼
Peter Parker, M.D. specializes in Allergy Physician and practices in Glendale, California. Credentials: M.D..
How much does Peter Parker, M.D. prescribe under Medicare Part D? ▼
In 2023, Peter Parker, M.D. wrote 2,757 Medicare Part D claims totaling $1.7M in drug costs for 382 beneficiaries.
What is Peter Parker, M.D.'s Medicare quality score? ▼
Peter Parker, M.D. has a CMS MIPS Final Score of 74.8/100 (Quality: 66.6, Cost: 44). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Peter Parker, M.D. located? ▼
Peter Parker, M.D. is located at 1100 W GLENOAKS BLVD, Glendale, CA, 91202. Phone: (818) 546-2626.
What is Peter Parker, M.D.'s NPI number? ▼
Peter Parker, M.D.'s National Provider Identifier (NPI) is 1598783789, issued on 07/17/2006.
Does Peter Parker, M.D. prescribe more brand-name or generic drugs? ▼
Peter Parker, M.D.'s prescribing is 32% brand-name and 68% generic drugs by claim count, with $1.6M in brand drug costs.
How many Allergy Physician providers are there in the US? ▼
There are 1,017 Allergy Physician providers across 50 states in the US. The average Allergy Physician provider writes 755 Medicare Part D claims per year.
What drugs does Peter Parker, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Peter Parker, M.D.'s most frequently prescribed drugs include Fluticasone Propionate, Azelastine Hcl, Triamcinolone Acetonide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Peter Parker, M.D. accept Medicare? ▼
Peter Parker, M.D. appears in CMS Medicare data with 2,757 Part D claims and 382 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Peter Parker, M.D.'s credentials? ▼
Peter Parker, M.D.'s NPI is 1598783789 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.